648926720

素因数分解:

$2^9\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:121

約数の個数: 320

約数和(自身を含む): 1880879616

約数和(自身を除く): 1231952896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 31, 32, 34, 37, 40, 52, 62, 64, 65, 68, 74, 80, 85, 104, 124, 128, 130, 136, 148, 155, 160, 170, 185, 208, 221, 248, 256, 260, 272, 296, 310, 320, 340, 370, 403, 416, 442, 481, 496, 512, 520, 527, 544, 592, 620, 629, 640, 680, 740, 806, 832, 884, 962, 992, 1040, 1054, 1088, 1105, 1147, 1184, 1240, 1258, 1280, 1360, 1480, 1612, 1664, 1768, 1924, 1984, 2015, 2080, 2108, 2176, 2210, 2294, 2368, 2405, 2480, 2516, 2560, 2635, 2720, 2960, 3145, 3224, 3328, 3536, 3848, 3968, 4030, 4160, 4216, 4352, 4420, 4588, 4736, 4810, 4960, 5032, 5270, 5440, 5735, 5920, 6290, 6448, 6656, 6851, 7072, 7696, 7936, 8060, 8177, 8320, 8432, 8704, 8840, 9176, 9472, 9620, 9920, 10064, 10540, 10880, 11470, 11840, 12580, 12896, 13702, 14144, 14911, 15392, 15872, 16120, 16354, 16640, 16864, 17680, 18352, 18944, 19240, 19499, 19840, 20128, 21080, 21760, 22940, 23680, 25160, 25792, 27404, 28288, 29822, 30784, 32240, 32708, 33280, 33728, 34255, 35360, 36704, 38480, 38998, 39680, 40256, 40885, 42160, 43520, 45880, 47360, 50320, 51584, 54808, 56576, 59644, 61568, 64480, 65416, 67456, 68510, 70720, 73408, 74555, 76960, 77996, 79360, 80512, 81770, 84320, 91760, 94720, 97495, 100640, 103168, 109616, 113152, 119288, 123136, 128960, 130832, 134912, 137020, 141440, 146816, 149110, 153920, 155992, 161024, 163540, 168640, 183520, 194990, 201280, 206336, 219232, 238576, 246272, 253487, 257920, 261664, 269824, 274040, 282880, 293632, 298220, 307840, 311984, 322048, 327080, 337280, 367040, 389980, 402560, 438464, 477152, 506974, 515840, 523328, 548080, 565760, 587264, 596440, 615680, 623968, 654160, 674560, 734080, 779960, 805120, 876928, 954304, 1013948, 1031680, 1046656, 1096160, 1192880, 1231360, 1247936, 1267435, 1308320, 1349120, 1468160, 1559920, 1610240, 1753856, 1908608, 2027896, 2093312, 2192320, 2385760, 2495872, 2534870, 2616640, 2936320, 3119840, 3507712, 3817216, 4055792, 4186624, 4384640, 4771520, 4991744, 5069740, 5233280, 6239680, 7634432, 8111584, 8769280, 9543040, 9983488, 10139480, 10466560, 12479360, 16223168, 17538560, 19086080, 20278960, 20933120, 24958720, 32446336, 38172160, 40557920, 49917440, 64892672, 81115840, 129785344, 162231680, 324463360, 648926720]

約数ペア:

[(1, 648926720), (2, 324463360), (4, 162231680), (5, 129785344), (8, 81115840), (10, 64892672), (13, 49917440), (16, 40557920), (17, 38172160), (20, 32446336), (26, 24958720), (31, 20933120), (32, 20278960), (34, 19086080), (37, 17538560), (40, 16223168), (52, 12479360), (62, 10466560), (64, 10139480), (65, 9983488), (68, 9543040), (74, 8769280), (80, 8111584), (85, 7634432), (104, 6239680), (124, 5233280), (128, 5069740), (130, 4991744), (136, 4771520), (148, 4384640), (155, 4186624), (160, 4055792), (170, 3817216), (185, 3507712), (208, 3119840), (221, 2936320), (248, 2616640), (256, 2534870), (260, 2495872), (272, 2385760), (296, 2192320), (310, 2093312), (320, 2027896), (340, 1908608), (370, 1753856), (403, 1610240), (416, 1559920), (442, 1468160), (481, 1349120), (496, 1308320), (512, 1267435), (520, 1247936), (527, 1231360), (544, 1192880), (592, 1096160), (620, 1046656), (629, 1031680), (640, 1013948), (680, 954304), (740, 876928), (806, 805120), (832, 779960), (884, 734080), (962, 674560), (992, 654160), (1040, 623968), (1054, 615680), (1088, 596440), (1105, 587264), (1147, 565760), (1184, 548080), (1240, 523328), (1258, 515840), (1280, 506974), (1360, 477152), (1480, 438464), (1612, 402560), (1664, 389980), (1768, 367040), (1924, 337280), (1984, 327080), (2015, 322048), (2080, 311984), (2108, 307840), (2176, 298220), (2210, 293632), (2294, 282880), (2368, 274040), (2405, 269824), (2480, 261664), (2516, 257920), (2560, 253487), (2635, 246272), (2720, 238576), (2960, 219232), (3145, 206336), (3224, 201280), (3328, 194990), (3536, 183520), (3848, 168640), (3968, 163540), (4030, 161024), (4160, 155992), (4216, 153920), (4352, 149110), (4420, 146816), (4588, 141440), (4736, 137020), (4810, 134912), (4960, 130832), (5032, 128960), (5270, 123136), (5440, 119288), (5735, 113152), (5920, 109616), (6290, 103168), (6448, 100640), (6656, 97495), (6851, 94720), (7072, 91760), (7696, 84320), (7936, 81770), (8060, 80512), (8177, 79360), (8320, 77996), (8432, 76960), (8704, 74555), (8840, 73408), (9176, 70720), (9472, 68510), (9620, 67456), (9920, 65416), (10064, 64480), (10540, 61568), (10880, 59644), (11470, 56576), (11840, 54808), (12580, 51584), (12896, 50320), (13702, 47360), (14144, 45880), (14911, 43520), (15392, 42160), (15872, 40885), (16120, 40256), (16354, 39680), (16640, 38998), (16864, 38480), (17680, 36704), (18352, 35360), (18944, 34255), (19240, 33728), (19499, 33280), (19840, 32708), (20128, 32240), (21080, 30784), (21760, 29822), (22940, 28288), (23680, 27404), (25160, 25792)]