645906245036

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{955482611}}^1$

素因数の和:955482641

約数の個数: 18

約数和(自身を含む): 1223973225972

約数和(自身を除く): 578066980936

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 955482611, 1910965222, 3821930444, 12421273943, 24842547886, 49685095772, 161476561259, 322953122518, 645906245036]

約数ペア:

[(1, 645906245036), (2, 322953122518), (4, 161476561259), (13, 49685095772), (26, 24842547886), (52, 12421273943), (169, 3821930444), (338, 1910965222), (676, 955482611)]