81149975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{647}}^1$

素因数の和:859

約数の個数: 24

約数和(自身を含む): 104859360

約数和(自身を除く): 23709385

約数列:

[1, 5, 25, 29, 145, 173, 647, 725, 865, 3235, 4325, 5017, 16175, 18763, 25085, 93815, 111931, 125425, 469075, 559655, 2798275, 3245999, 16229995, 81149975]

約数ペア:

[(1, 81149975), (5, 16229995), (25, 3245999), (29, 2798275), (145, 559655), (173, 469075), (647, 125425), (725, 111931), (865, 93815), (3235, 25085), (4325, 18763), (5017, 16175)]