81108775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{4999}}^1$

素因数の和:5079

約数の個数: 24

約数和(自身を含む): 111600000

約数和(自身を除く): 30491225

約数列:

[1, 5, 11, 25, 55, 59, 275, 295, 649, 1475, 3245, 4999, 16225, 24995, 54989, 124975, 274945, 294941, 1374725, 1474705, 3244351, 7373525, 16221755, 81108775]

約数ペア:

[(1, 81108775), (5, 16221755), (11, 7373525), (25, 3244351), (55, 1474705), (59, 1374725), (275, 294941), (295, 274945), (649, 124975), (1475, 54989), (3245, 24995), (4999, 16225)]