81583240

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{7207}}^1$

素因数の和:7501

約数の個数: 32

約数和(自身を含む): 184236480

約数和(自身を除く): 102653240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 7207, 11320, 14414, 28828, 36035, 57656, 72070, 144140, 288280, 2039581, 4079162, 8158324, 10197905, 16316648, 20395810, 40791620, 81583240]

約数ペア:

[(1, 81583240), (2, 40791620), (4, 20395810), (5, 16316648), (8, 10197905), (10, 8158324), (20, 4079162), (40, 2039581), (283, 288280), (566, 144140), (1132, 72070), (1415, 57656), (2264, 36035), (2830, 28828), (5660, 14414), (7207, 11320)]