81297840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:467

約数の個数: 160

約数和(自身を含む): 275982336

約数和(自身を除く): 194684496

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 71, 78, 80, 104, 120, 130, 142, 156, 195, 208, 213, 240, 260, 284, 312, 355, 367, 390, 426, 520, 568, 624, 710, 734, 780, 852, 923, 1040, 1065, 1101, 1136, 1420, 1468, 1560, 1704, 1835, 1846, 2130, 2202, 2769, 2840, 2936, 3120, 3408, 3670, 3692, 4260, 4404, 4615, 4771, 5505, 5538, 5680, 5872, 7340, 7384, 8520, 8808, 9230, 9542, 11010, 11076, 13845, 14313, 14680, 14768, 17040, 17616, 18460, 19084, 22020, 22152, 23855, 26057, 27690, 28626, 29360, 36920, 38168, 44040, 44304, 47710, 52114, 55380, 57252, 71565, 73840, 76336, 78171, 88080, 95420, 104228, 110760, 114504, 130285, 143130, 156342, 190840, 208456, 221520, 229008, 260570, 286260, 312684, 338741, 381680, 390855, 416912, 521140, 572520, 625368, 677482, 781710, 1016223, 1042280, 1145040, 1250736, 1354964, 1563420, 1693705, 2032446, 2084560, 2709928, 3126840, 3387410, 4064892, 5081115, 5419856, 6253680, 6774820, 8129784, 10162230, 13549640, 16259568, 20324460, 27099280, 40648920, 81297840]

約数ペア:

[(1, 81297840), (2, 40648920), (3, 27099280), (4, 20324460), (5, 16259568), (6, 13549640), (8, 10162230), (10, 8129784), (12, 6774820), (13, 6253680), (15, 5419856), (16, 5081115), (20, 4064892), (24, 3387410), (26, 3126840), (30, 2709928), (39, 2084560), (40, 2032446), (48, 1693705), (52, 1563420), (60, 1354964), (65, 1250736), (71, 1145040), (78, 1042280), (80, 1016223), (104, 781710), (120, 677482), (130, 625368), (142, 572520), (156, 521140), (195, 416912), (208, 390855), (213, 381680), (240, 338741), (260, 312684), (284, 286260), (312, 260570), (355, 229008), (367, 221520), (390, 208456), (426, 190840), (520, 156342), (568, 143130), (624, 130285), (710, 114504), (734, 110760), (780, 104228), (852, 95420), (923, 88080), (1040, 78171), (1065, 76336), (1101, 73840), (1136, 71565), (1420, 57252), (1468, 55380), (1560, 52114), (1704, 47710), (1835, 44304), (1846, 44040), (2130, 38168), (2202, 36920), (2769, 29360), (2840, 28626), (2936, 27690), (3120, 26057), (3408, 23855), (3670, 22152), (3692, 22020), (4260, 19084), (4404, 18460), (4615, 17616), (4771, 17040), (5505, 14768), (5538, 14680), (5680, 14313), (5872, 13845), (7340, 11076), (7384, 11010), (8520, 9542), (8808, 9230)]