31045460

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21863}}^1$

素因数の和:21943

約数の個数: 24

約数和(自身を含む): 66116736

約数和(自身を除く): 35071276

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 21863, 43726, 87452, 109315, 218630, 437260, 1552273, 3104546, 6209092, 7761365, 15522730, 31045460]

約数ペア:

[(1, 31045460), (2, 15522730), (4, 7761365), (5, 6209092), (10, 3104546), (20, 1552273), (71, 437260), (142, 218630), (284, 109315), (355, 87452), (710, 43726), (1420, 21863)]