161591860

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{28753}}^1$

素因数の和:29043

約数の個数: 24

約数和(自身を含む): 340562376

約数和(自身を除く): 178970516

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 28753, 57506, 115012, 143765, 287530, 575060, 8079593, 16159186, 32318372, 40397965, 80795930, 161591860]

約数ペア:

[(1, 161591860), (2, 80795930), (4, 40397965), (5, 32318372), (10, 16159186), (20, 8079593), (281, 575060), (562, 287530), (1124, 143765), (1405, 115012), (2810, 57506), (5620, 28753)]