71220004

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{61609}}^1$

素因数の和:61647

約数の個数: 18

約数和(自身を含む): 132399890

約数和(自身を除く): 61179886

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 61609, 123218, 246436, 1047353, 2094706, 4189412, 17805001, 35610002, 71220004]

約数ペア:

[(1, 71220004), (2, 35610002), (4, 17805001), (17, 4189412), (34, 2094706), (68, 1047353), (289, 246436), (578, 123218), (1156, 61609)]