17781640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15329}}^1$

素因数の和:15369

約数の個数: 32

約数和(自身を含む): 41391000

約数和(自身を除く): 23609360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15329, 30658, 61316, 76645, 122632, 153290, 306580, 444541, 613160, 889082, 1778164, 2222705, 3556328, 4445410, 8890820, 17781640]

約数ペア:

[(1, 17781640), (2, 8890820), (4, 4445410), (5, 3556328), (8, 2222705), (10, 1778164), (20, 889082), (29, 613160), (40, 444541), (58, 306580), (116, 153290), (145, 122632), (232, 76645), (290, 61316), (580, 30658), (1160, 15329)]