325341640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{625657}}^1$

素因数の和:625681

約数の個数: 32

約数和(自身を含む): 788329080

約数和(自身を除く): 462987440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 625657, 1251314, 2502628, 3128285, 5005256, 6256570, 8133541, 12513140, 16267082, 25026280, 32534164, 40667705, 65068328, 81335410, 162670820, 325341640]

約数ペア:

[(1, 325341640), (2, 162670820), (4, 81335410), (5, 65068328), (8, 40667705), (10, 32534164), (13, 25026280), (20, 16267082), (26, 12513140), (40, 8133541), (52, 6256570), (65, 5005256), (104, 3128285), (130, 2502628), (260, 1251314), (520, 625657)]