990916025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{3109}}^1$

素因数の和:3210

約数の個数: 48

約数和(自身を含む): 1434580800

約数和(自身を除く): 443664775

約数列:

[1, 5, 11, 19, 25, 55, 61, 95, 209, 275, 305, 475, 671, 1045, 1159, 1525, 3109, 3355, 5225, 5795, 12749, 15545, 16775, 28975, 34199, 59071, 63745, 77725, 170995, 189649, 295355, 318725, 649781, 854975, 948245, 1476775, 2086139, 3248905, 3603331, 4741225, 10430695, 16244525, 18016655, 39636641, 52153475, 90083275, 198183205, 990916025]

約数ペア:

[(1, 990916025), (5, 198183205), (11, 90083275), (19, 52153475), (25, 39636641), (55, 18016655), (61, 16244525), (95, 10430695), (209, 4741225), (275, 3603331), (305, 3248905), (475, 2086139), (671, 1476775), (1045, 948245), (1159, 854975), (1525, 649781), (3109, 318725), (3355, 295355), (5225, 189649), (5795, 170995), (12749, 77725), (15545, 63745), (16775, 59071), (28975, 34199)]