20697456

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{809}}^1$

素因数の和:874

約数の個数: 80

約数和(自身を含む): 59058720

約数和(自身を除く): 38361264

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 41, 48, 52, 78, 82, 104, 123, 156, 164, 208, 246, 312, 328, 492, 533, 624, 656, 809, 984, 1066, 1599, 1618, 1968, 2132, 2427, 3198, 3236, 4264, 4854, 6396, 6472, 8528, 9708, 10517, 12792, 12944, 19416, 21034, 25584, 31551, 33169, 38832, 42068, 63102, 66338, 84136, 99507, 126204, 132676, 168272, 199014, 252408, 265352, 398028, 431197, 504816, 530704, 796056, 862394, 1293591, 1592112, 1724788, 2587182, 3449576, 5174364, 6899152, 10348728, 20697456]

約数ペア:

[(1, 20697456), (2, 10348728), (3, 6899152), (4, 5174364), (6, 3449576), (8, 2587182), (12, 1724788), (13, 1592112), (16, 1293591), (24, 862394), (26, 796056), (39, 530704), (41, 504816), (48, 431197), (52, 398028), (78, 265352), (82, 252408), (104, 199014), (123, 168272), (156, 132676), (164, 126204), (208, 99507), (246, 84136), (312, 66338), (328, 63102), (492, 42068), (533, 38832), (624, 33169), (656, 31551), (809, 25584), (984, 21034), (1066, 19416), (1599, 12944), (1618, 12792), (1968, 10517), (2132, 9708), (2427, 8528), (3198, 6472), (3236, 6396), (4264, 4854)]