25245880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{317}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 62506080

約数和(自身を除く): 37260200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 181, 220, 317, 362, 440, 634, 724, 905, 1268, 1448, 1585, 1810, 1991, 2536, 3170, 3487, 3620, 3982, 6340, 6974, 7240, 7964, 9955, 12680, 13948, 15928, 17435, 19910, 27896, 34870, 39820, 57377, 69740, 79640, 114754, 139480, 229508, 286885, 459016, 573770, 631147, 1147540, 1262294, 2295080, 2524588, 3155735, 5049176, 6311470, 12622940, 25245880]

約数ペア:

[(1, 25245880), (2, 12622940), (4, 6311470), (5, 5049176), (8, 3155735), (10, 2524588), (11, 2295080), (20, 1262294), (22, 1147540), (40, 631147), (44, 573770), (55, 459016), (88, 286885), (110, 229508), (181, 139480), (220, 114754), (317, 79640), (362, 69740), (440, 57377), (634, 39820), (724, 34870), (905, 27896), (1268, 19910), (1448, 17435), (1585, 15928), (1810, 13948), (1991, 12680), (2536, 9955), (3170, 7964), (3487, 7240), (3620, 6974), (3982, 6340)]