72887180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{51329}}^1$

素因数の和:51409

約数の個数: 24

約数和(自身を含む): 155221920

約数和(自身を除く): 82334740

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 51329, 102658, 205316, 256645, 513290, 1026580, 3644359, 7288718, 14577436, 18221795, 36443590, 72887180]

約数ペア:

[(1, 72887180), (2, 36443590), (4, 18221795), (5, 14577436), (10, 7288718), (20, 3644359), (71, 1026580), (142, 513290), (284, 256645), (355, 205316), (710, 102658), (1420, 51329)]