81612080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{8431}}^1$

素因数の和:8466

約数の個数: 60

約数和(自身を含む): 208590816

約数和(自身を除く): 126978736

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 121, 176, 220, 242, 440, 484, 605, 880, 968, 1210, 1936, 2420, 4840, 8431, 9680, 16862, 33724, 42155, 67448, 84310, 92741, 134896, 168620, 185482, 337240, 370964, 463705, 674480, 741928, 927410, 1020151, 1483856, 1854820, 2040302, 3709640, 4080604, 5100755, 7419280, 8161208, 10201510, 16322416, 20403020, 40806040, 81612080]

約数ペア:

[(1, 81612080), (2, 40806040), (4, 20403020), (5, 16322416), (8, 10201510), (10, 8161208), (11, 7419280), (16, 5100755), (20, 4080604), (22, 3709640), (40, 2040302), (44, 1854820), (55, 1483856), (80, 1020151), (88, 927410), (110, 741928), (121, 674480), (176, 463705), (220, 370964), (242, 337240), (440, 185482), (484, 168620), (605, 134896), (880, 92741), (968, 84310), (1210, 67448), (1936, 42155), (2420, 33724), (4840, 16862), (8431, 9680)]