40420720

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3391}}^1$

素因数の和:3553

約数の個数: 40

約数和(自身を含む): 94636800

約数和(自身を除く): 54216080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 3391, 5960, 6782, 11920, 13564, 16955, 27128, 33910, 54256, 67820, 135640, 271280, 505259, 1010518, 2021036, 2526295, 4042072, 5052590, 8084144, 10105180, 20210360, 40420720]

約数ペア:

[(1, 40420720), (2, 20210360), (4, 10105180), (5, 8084144), (8, 5052590), (10, 4042072), (16, 2526295), (20, 2021036), (40, 1010518), (80, 505259), (149, 271280), (298, 135640), (596, 67820), (745, 54256), (1192, 33910), (1490, 27128), (2384, 16955), (2980, 13564), (3391, 11920), (5960, 6782)]