30861820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{140281}}^1$

素因数の和:140301

約数の個数: 24

約数和(自身を含む): 70702128

約数和(自身を除く): 39840308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 140281, 280562, 561124, 701405, 1402810, 1543091, 2805620, 3086182, 6172364, 7715455, 15430910, 30861820]

約数ペア:

[(1, 30861820), (2, 15430910), (4, 7715455), (5, 6172364), (10, 3086182), (11, 2805620), (20, 1543091), (22, 1402810), (44, 701405), (55, 561124), (110, 280562), (220, 140281)]