39870280

素因数分解:

$2^3\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4391}}^1$

素因数の和:4629

約数の個数: 32

約数和(自身を含む): 90123840

約数和(自身を除く): 50253560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 227, 454, 908, 1135, 1816, 2270, 4391, 4540, 8782, 9080, 17564, 21955, 35128, 43910, 87820, 175640, 996757, 1993514, 3987028, 4983785, 7974056, 9967570, 19935140, 39870280]

約数ペア:

[(1, 39870280), (2, 19935140), (4, 9967570), (5, 7974056), (8, 4983785), (10, 3987028), (20, 1993514), (40, 996757), (227, 175640), (454, 87820), (908, 43910), (1135, 35128), (1816, 21955), (2270, 17564), (4391, 9080), (4540, 8782)]