25413740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1627}}^1$

素因数の和:1718

約数の個数: 48

約数和(自身を含む): 59076864

約数和(自身を除く): 33663124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 1627, 3124, 3254, 3905, 6508, 7810, 8135, 15620, 16270, 17897, 32540, 35794, 71588, 89485, 115517, 178970, 231034, 357940, 462068, 577585, 1155170, 1270687, 2310340, 2541374, 5082748, 6353435, 12706870, 25413740]

約数ペア:

[(1, 25413740), (2, 12706870), (4, 6353435), (5, 5082748), (10, 2541374), (11, 2310340), (20, 1270687), (22, 1155170), (44, 577585), (55, 462068), (71, 357940), (110, 231034), (142, 178970), (220, 115517), (284, 89485), (355, 71588), (710, 35794), (781, 32540), (1420, 17897), (1562, 16270), (1627, 15620), (3124, 8135), (3254, 7810), (3905, 6508)]