28290075

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{647}}^1$

素因数の和:724

約数の個数: 48

約数和(自身を含む): 52068096

約数和(自身を除く): 23778021

約数列:

[1, 3, 5, 11, 15, 25, 33, 53, 55, 75, 159, 165, 265, 275, 583, 647, 795, 825, 1325, 1749, 1941, 2915, 3235, 3975, 7117, 8745, 9705, 14575, 16175, 21351, 34291, 35585, 43725, 48525, 102873, 106755, 171455, 177925, 377201, 514365, 533775, 857275, 1131603, 1886005, 2571825, 5658015, 9430025, 28290075]

約数ペア:

[(1, 28290075), (3, 9430025), (5, 5658015), (11, 2571825), (15, 1886005), (25, 1131603), (33, 857275), (53, 533775), (55, 514365), (75, 377201), (159, 177925), (165, 171455), (265, 106755), (275, 102873), (583, 48525), (647, 43725), (795, 35585), (825, 34291), (1325, 21351), (1749, 16175), (1941, 14575), (2915, 9705), (3235, 8745), (3975, 7117)]