257049520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:148

約数の個数: 320

約数和(自身を含む): 815947776

約数和(自身を除く): 558898256

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 31, 34, 35, 40, 52, 56, 62, 65, 67, 68, 70, 80, 85, 91, 104, 112, 119, 124, 130, 134, 136, 140, 155, 170, 182, 208, 217, 221, 238, 248, 260, 268, 272, 280, 310, 335, 340, 364, 403, 434, 442, 455, 469, 476, 496, 520, 527, 536, 560, 595, 620, 670, 680, 728, 806, 868, 871, 884, 910, 938, 952, 1040, 1054, 1072, 1085, 1105, 1139, 1190, 1240, 1340, 1360, 1456, 1547, 1612, 1736, 1742, 1768, 1820, 1876, 1904, 2015, 2077, 2108, 2170, 2210, 2278, 2345, 2380, 2480, 2635, 2680, 2821, 3094, 3224, 3472, 3484, 3536, 3640, 3689, 3752, 4030, 4154, 4216, 4340, 4355, 4420, 4556, 4690, 4760, 5270, 5360, 5642, 5695, 6097, 6188, 6448, 6851, 6968, 7280, 7378, 7504, 7735, 7973, 8060, 8308, 8432, 8680, 8710, 8840, 9112, 9380, 9520, 10385, 10540, 11284, 11390, 12194, 12376, 13702, 13936, 14105, 14539, 14756, 14807, 15470, 15946, 16120, 16616, 17360, 17420, 17680, 18224, 18445, 18760, 20770, 21080, 22568, 22780, 24388, 24752, 27001, 27404, 28210, 29078, 29512, 29614, 30485, 30940, 31892, 32240, 33232, 34255, 34840, 35309, 36890, 37520, 39865, 41540, 42160, 45136, 45560, 47957, 48776, 54002, 54808, 56420, 58156, 59024, 59228, 60970, 61880, 63784, 68510, 69680, 70618, 72695, 73780, 74035, 79730, 83080, 91120, 95914, 97552, 103649, 108004, 109616, 112840, 116312, 118456, 121940, 123760, 127568, 135005, 137020, 141236, 145390, 147560, 148070, 159460, 166160, 176545, 189007, 191828, 207298, 216008, 225680, 232624, 236912, 239785, 243880, 247163, 270010, 274040, 282472, 290780, 295120, 296140, 318920, 353090, 378014, 383656, 414596, 432016, 459017, 479570, 487760, 494326, 518245, 540020, 548080, 564944, 581560, 592280, 637840, 706180, 756028, 767312, 829192, 918034, 945035, 959140, 988652, 1036490, 1080040, 1163120, 1184560, 1235815, 1412360, 1512056, 1658384, 1836068, 1890070, 1918280, 1977304, 2072980, 2160080, 2295085, 2471630, 2824720, 3024112, 3213119, 3672136, 3780140, 3836560, 3954608, 4145960, 4590170, 4943260, 6426238, 7344272, 7560280, 8291920, 9180340, 9886520, 12852476, 15120560, 16065595, 18360680, 19773040, 25704952, 32131190, 36721360, 51409904, 64262380, 128524760, 257049520]

約数ペア:

[(1, 257049520), (2, 128524760), (4, 64262380), (5, 51409904), (7, 36721360), (8, 32131190), (10, 25704952), (13, 19773040), (14, 18360680), (16, 16065595), (17, 15120560), (20, 12852476), (26, 9886520), (28, 9180340), (31, 8291920), (34, 7560280), (35, 7344272), (40, 6426238), (52, 4943260), (56, 4590170), (62, 4145960), (65, 3954608), (67, 3836560), (68, 3780140), (70, 3672136), (80, 3213119), (85, 3024112), (91, 2824720), (104, 2471630), (112, 2295085), (119, 2160080), (124, 2072980), (130, 1977304), (134, 1918280), (136, 1890070), (140, 1836068), (155, 1658384), (170, 1512056), (182, 1412360), (208, 1235815), (217, 1184560), (221, 1163120), (238, 1080040), (248, 1036490), (260, 988652), (268, 959140), (272, 945035), (280, 918034), (310, 829192), (335, 767312), (340, 756028), (364, 706180), (403, 637840), (434, 592280), (442, 581560), (455, 564944), (469, 548080), (476, 540020), (496, 518245), (520, 494326), (527, 487760), (536, 479570), (560, 459017), (595, 432016), (620, 414596), (670, 383656), (680, 378014), (728, 353090), (806, 318920), (868, 296140), (871, 295120), (884, 290780), (910, 282472), (938, 274040), (952, 270010), (1040, 247163), (1054, 243880), (1072, 239785), (1085, 236912), (1105, 232624), (1139, 225680), (1190, 216008), (1240, 207298), (1340, 191828), (1360, 189007), (1456, 176545), (1547, 166160), (1612, 159460), (1736, 148070), (1742, 147560), (1768, 145390), (1820, 141236), (1876, 137020), (1904, 135005), (2015, 127568), (2077, 123760), (2108, 121940), (2170, 118456), (2210, 116312), (2278, 112840), (2345, 109616), (2380, 108004), (2480, 103649), (2635, 97552), (2680, 95914), (2821, 91120), (3094, 83080), (3224, 79730), (3472, 74035), (3484, 73780), (3536, 72695), (3640, 70618), (3689, 69680), (3752, 68510), (4030, 63784), (4154, 61880), (4216, 60970), (4340, 59228), (4355, 59024), (4420, 58156), (4556, 56420), (4690, 54808), (4760, 54002), (5270, 48776), (5360, 47957), (5642, 45560), (5695, 45136), (6097, 42160), (6188, 41540), (6448, 39865), (6851, 37520), (6968, 36890), (7280, 35309), (7378, 34840), (7504, 34255), (7735, 33232), (7973, 32240), (8060, 31892), (8308, 30940), (8432, 30485), (8680, 29614), (8710, 29512), (8840, 29078), (9112, 28210), (9380, 27404), (9520, 27001), (10385, 24752), (10540, 24388), (11284, 22780), (11390, 22568), (12194, 21080), (12376, 20770), (13702, 18760), (13936, 18445), (14105, 18224), (14539, 17680), (14756, 17420), (14807, 17360), (15470, 16616), (15946, 16120)]