208435280

素因数分解:

$2^4\times 5^1\times {\mathrm{113}}^1\times {\mathrm{23057}}^1$

素因数の和:23183

約数の個数: 40

約数和(自身を含む): 488921832

約数和(自身を除く): 280486552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 113, 226, 452, 565, 904, 1130, 1808, 2260, 4520, 9040, 23057, 46114, 92228, 115285, 184456, 230570, 368912, 461140, 922280, 1844560, 2605441, 5210882, 10421764, 13027205, 20843528, 26054410, 41687056, 52108820, 104217640, 208435280]

約数ペア:

[(1, 208435280), (2, 104217640), (4, 52108820), (5, 41687056), (8, 26054410), (10, 20843528), (16, 13027205), (20, 10421764), (40, 5210882), (80, 2605441), (113, 1844560), (226, 922280), (452, 461140), (565, 368912), (904, 230570), (1130, 184456), (1808, 115285), (2260, 92228), (4520, 46114), (9040, 23057)]