25038680

素因数分解:

$2^3\times 5^1\times {\mathrm{661}}^1\times {\mathrm{947}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 56481840

約数和(自身を除く): 31443160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 661, 947, 1322, 1894, 2644, 3305, 3788, 4735, 5288, 6610, 7576, 9470, 13220, 18940, 26440, 37880, 625967, 1251934, 2503868, 3129835, 5007736, 6259670, 12519340, 25038680]

約数ペア:

[(1, 25038680), (2, 12519340), (4, 6259670), (5, 5007736), (8, 3129835), (10, 2503868), (20, 1251934), (40, 625967), (661, 37880), (947, 26440), (1322, 18940), (1894, 13220), (2644, 9470), (3305, 7576), (3788, 6610), (4735, 5288)]