20123409595

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{877}}^1\times {\mathrm{4001}}^1$

素因数の和:4951

約数の個数: 32

約数和(自身を含む): 25636363776

約数和(自身を除く): 5512954181

約数列:

[1, 5, 31, 37, 155, 185, 877, 1147, 4001, 4385, 5735, 20005, 27187, 32449, 124031, 135935, 148037, 162245, 620155, 740185, 1005919, 3508877, 4589147, 5029595, 17544385, 22945735, 108775187, 129828449, 543875935, 649142245, 4024681919, 20123409595]

約数ペア:

[(1, 20123409595), (5, 4024681919), (31, 649142245), (37, 543875935), (155, 129828449), (185, 108775187), (877, 22945735), (1147, 17544385), (4001, 5029595), (4385, 4589147), (5735, 3508877), (20005, 1005919), (27187, 740185), (32449, 620155), (124031, 162245), (135935, 148037)]