71778520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{4409}}^1$

素因数の和:4468

約数の個数: 64

約数和(自身を含む): 180986400

約数和(自身を除く): 109207880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 55, 74, 88, 110, 148, 185, 220, 296, 370, 407, 440, 740, 814, 1480, 1628, 2035, 3256, 4070, 4409, 8140, 8818, 16280, 17636, 22045, 35272, 44090, 48499, 88180, 96998, 163133, 176360, 193996, 242495, 326266, 387992, 484990, 652532, 815665, 969980, 1305064, 1631330, 1794463, 1939960, 3262660, 3588926, 6525320, 7177852, 8972315, 14355704, 17944630, 35889260, 71778520]

約数ペア:

[(1, 71778520), (2, 35889260), (4, 17944630), (5, 14355704), (8, 8972315), (10, 7177852), (11, 6525320), (20, 3588926), (22, 3262660), (37, 1939960), (40, 1794463), (44, 1631330), (55, 1305064), (74, 969980), (88, 815665), (110, 652532), (148, 484990), (185, 387992), (220, 326266), (296, 242495), (370, 193996), (407, 176360), (440, 163133), (740, 96998), (814, 88180), (1480, 48499), (1628, 44090), (2035, 35272), (3256, 22045), (4070, 17636), (4409, 16280), (8140, 8818)]