61820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 142128

約数和(自身を除く): 80308

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 281, 562, 1124, 1405, 2810, 3091, 5620, 6182, 12364, 15455, 30910, 61820]

約数ペア:

[(1, 61820), (2, 30910), (4, 15455), (5, 12364), (10, 6182), (11, 5620), (20, 3091), (22, 2810), (44, 1405), (55, 1124), (110, 562), (220, 281)]