31165160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{821}}^1$

素因数の和:918

約数の個数: 64

約数和(自身を含む): 76643280

約数和(自身を除く): 45478120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 584, 730, 821, 949, 1460, 1642, 1898, 2920, 3284, 3796, 4105, 4745, 6568, 7592, 8210, 9490, 10673, 16420, 18980, 21346, 32840, 37960, 42692, 53365, 59933, 85384, 106730, 119866, 213460, 239732, 299665, 426920, 479464, 599330, 779129, 1198660, 1558258, 2397320, 3116516, 3895645, 6233032, 7791290, 15582580, 31165160]

約数ペア:

[(1, 31165160), (2, 15582580), (4, 7791290), (5, 6233032), (8, 3895645), (10, 3116516), (13, 2397320), (20, 1558258), (26, 1198660), (40, 779129), (52, 599330), (65, 479464), (73, 426920), (104, 299665), (130, 239732), (146, 213460), (260, 119866), (292, 106730), (365, 85384), (520, 59933), (584, 53365), (730, 42692), (821, 37960), (949, 32840), (1460, 21346), (1642, 18980), (1898, 16420), (2920, 10673), (3284, 9490), (3796, 8210), (4105, 7592), (4745, 6568)]