89507960

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8707}}^1$

素因数の和:8975

約数の個数: 32

約数和(自身を含む): 202199760

約数和(自身を除く): 112691800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8707, 10280, 17414, 34828, 43535, 69656, 87070, 174140, 348280, 2237699, 4475398, 8950796, 11188495, 17901592, 22376990, 44753980, 89507960]

約数ペア:

[(1, 89507960), (2, 44753980), (4, 22376990), (5, 17901592), (8, 11188495), (10, 8950796), (20, 4475398), (40, 2237699), (257, 348280), (514, 174140), (1028, 87070), (1285, 69656), (2056, 43535), (2570, 34828), (5140, 17414), (8707, 10280)]