281519680

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:157

約数の個数: 224

約数和(自身を含む): 778337280

約数和(自身を除く): 496817600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 37, 40, 52, 59, 62, 64, 65, 74, 80, 104, 118, 124, 130, 148, 155, 160, 185, 208, 236, 248, 260, 295, 296, 310, 320, 370, 403, 416, 472, 481, 496, 520, 590, 592, 620, 740, 767, 806, 832, 944, 962, 992, 1040, 1147, 1180, 1184, 1240, 1480, 1534, 1612, 1829, 1888, 1924, 1984, 2015, 2080, 2183, 2294, 2360, 2368, 2405, 2480, 2960, 3068, 3224, 3658, 3776, 3835, 3848, 4030, 4160, 4366, 4588, 4720, 4810, 4960, 5735, 5920, 6136, 6448, 7316, 7670, 7696, 8060, 8732, 9145, 9176, 9440, 9620, 9920, 10915, 11470, 11840, 12272, 12896, 14632, 14911, 15340, 15392, 16120, 17464, 18290, 18352, 18880, 19240, 21830, 22940, 23777, 24544, 25792, 28379, 29264, 29822, 30680, 30784, 32240, 34928, 36580, 36704, 38480, 43660, 45880, 47554, 49088, 56758, 58528, 59644, 61360, 64480, 67673, 69856, 73160, 73408, 74555, 76960, 87320, 91760, 95108, 113516, 117056, 118885, 119288, 122720, 128960, 135346, 139712, 141895, 146320, 149110, 153920, 174640, 183520, 190216, 227032, 237770, 238576, 245440, 270692, 283790, 292640, 298220, 338365, 349280, 367040, 380432, 454064, 475540, 477152, 541384, 567580, 585280, 596440, 676730, 698560, 760864, 879749, 908128, 951080, 954304, 1082768, 1135160, 1192880, 1353460, 1521728, 1759498, 1816256, 1902160, 2165536, 2270320, 2385760, 2706920, 3518996, 3804320, 4331072, 4398745, 4540640, 4771520, 5413840, 7037992, 7608640, 8797490, 9081280, 10827680, 14075984, 17594980, 21655360, 28151968, 35189960, 56303936, 70379920, 140759840, 281519680]

約数ペア:

[(1, 281519680), (2, 140759840), (4, 70379920), (5, 56303936), (8, 35189960), (10, 28151968), (13, 21655360), (16, 17594980), (20, 14075984), (26, 10827680), (31, 9081280), (32, 8797490), (37, 7608640), (40, 7037992), (52, 5413840), (59, 4771520), (62, 4540640), (64, 4398745), (65, 4331072), (74, 3804320), (80, 3518996), (104, 2706920), (118, 2385760), (124, 2270320), (130, 2165536), (148, 1902160), (155, 1816256), (160, 1759498), (185, 1521728), (208, 1353460), (236, 1192880), (248, 1135160), (260, 1082768), (295, 954304), (296, 951080), (310, 908128), (320, 879749), (370, 760864), (403, 698560), (416, 676730), (472, 596440), (481, 585280), (496, 567580), (520, 541384), (590, 477152), (592, 475540), (620, 454064), (740, 380432), (767, 367040), (806, 349280), (832, 338365), (944, 298220), (962, 292640), (992, 283790), (1040, 270692), (1147, 245440), (1180, 238576), (1184, 237770), (1240, 227032), (1480, 190216), (1534, 183520), (1612, 174640), (1829, 153920), (1888, 149110), (1924, 146320), (1984, 141895), (2015, 139712), (2080, 135346), (2183, 128960), (2294, 122720), (2360, 119288), (2368, 118885), (2405, 117056), (2480, 113516), (2960, 95108), (3068, 91760), (3224, 87320), (3658, 76960), (3776, 74555), (3835, 73408), (3848, 73160), (4030, 69856), (4160, 67673), (4366, 64480), (4588, 61360), (4720, 59644), (4810, 58528), (4960, 56758), (5735, 49088), (5920, 47554), (6136, 45880), (6448, 43660), (7316, 38480), (7670, 36704), (7696, 36580), (8060, 34928), (8732, 32240), (9145, 30784), (9176, 30680), (9440, 29822), (9620, 29264), (9920, 28379), (10915, 25792), (11470, 24544), (11840, 23777), (12272, 22940), (12896, 21830), (14632, 19240), (14911, 18880), (15340, 18352), (15392, 18290), (16120, 17464)]