31916980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{51479}}^1$

素因数の和:51519

約数の個数: 24

約数和(自身を含む): 69189120

約数和(自身を除く): 37272140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 51479, 102958, 205916, 257395, 514790, 1029580, 1595849, 3191698, 6383396, 7979245, 15958490, 31916980]

約数ペア:

[(1, 31916980), (2, 15958490), (4, 7979245), (5, 6383396), (10, 3191698), (20, 1595849), (31, 1029580), (62, 514790), (124, 257395), (155, 205916), (310, 102958), (620, 51479)]