31567120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:392

約数の個数: 80

約数和(自身を含む): 79994880

約数和(自身を除く): 48427760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 127, 130, 208, 239, 254, 260, 478, 508, 520, 635, 956, 1016, 1040, 1195, 1270, 1651, 1912, 2032, 2390, 2540, 3107, 3302, 3824, 4780, 5080, 6214, 6604, 8255, 9560, 10160, 12428, 13208, 15535, 16510, 19120, 24856, 26416, 30353, 31070, 33020, 49712, 60706, 62140, 66040, 121412, 124280, 132080, 151765, 242824, 248560, 303530, 394589, 485648, 607060, 789178, 1214120, 1578356, 1972945, 2428240, 3156712, 3945890, 6313424, 7891780, 15783560, 31567120]

約数ペア:

[(1, 31567120), (2, 15783560), (4, 7891780), (5, 6313424), (8, 3945890), (10, 3156712), (13, 2428240), (16, 1972945), (20, 1578356), (26, 1214120), (40, 789178), (52, 607060), (65, 485648), (80, 394589), (104, 303530), (127, 248560), (130, 242824), (208, 151765), (239, 132080), (254, 124280), (260, 121412), (478, 66040), (508, 62140), (520, 60706), (635, 49712), (956, 33020), (1016, 31070), (1040, 30353), (1195, 26416), (1270, 24856), (1651, 19120), (1912, 16510), (2032, 15535), (2390, 13208), (2540, 12428), (3107, 10160), (3302, 9560), (3824, 8255), (4780, 6604), (5080, 6214)]