1226980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1979}}^1$

素因数の和:2019

約数の個数: 24

約数和(自身を含む): 2661120

約数和(自身を除く): 1434140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 1979, 3958, 7916, 9895, 19790, 39580, 61349, 122698, 245396, 306745, 613490, 1226980]

約数ペア:

[(1, 1226980), (2, 613490), (4, 306745), (5, 245396), (10, 122698), (20, 61349), (31, 39580), (62, 19790), (124, 9895), (155, 7916), (310, 3958), (620, 1979)]