25939640

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{10631}}^1$

素因数の和:10703

約数の個数: 32

約数和(自身を含む): 59326560

約数和(自身を除く): 33386920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 10631, 21262, 42524, 53155, 85048, 106310, 212620, 425240, 648491, 1296982, 2593964, 3242455, 5187928, 6484910, 12969820, 25939640]

約数ペア:

[(1, 25939640), (2, 12969820), (4, 6484910), (5, 5187928), (8, 3242455), (10, 2593964), (20, 1296982), (40, 648491), (61, 425240), (122, 212620), (244, 106310), (305, 85048), (488, 53155), (610, 42524), (1220, 21262), (2440, 10631)]