27981220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{45131}}^1$

素因数の和:45171

約数の個数: 24

約数和(自身を含む): 60657408

約数和(自身を除く): 32676188

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 45131, 90262, 180524, 225655, 451310, 902620, 1399061, 2798122, 5596244, 6995305, 13990610, 27981220]

約数ペア:

[(1, 27981220), (2, 13990610), (4, 6995305), (5, 5596244), (10, 2798122), (20, 1399061), (31, 902620), (62, 451310), (124, 225655), (155, 180524), (310, 90262), (620, 45131)]