39987935

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1279}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 53406720

約数和(自身を除く): 13418785

約数列:

[1, 5, 13, 37, 65, 169, 185, 481, 845, 1279, 2405, 6253, 6395, 16627, 31265, 47323, 83135, 216151, 236615, 615199, 1080755, 3075995, 7997587, 39987935]

約数ペア:

[(1, 39987935), (5, 7997587), (13, 3075995), (37, 1080755), (65, 615199), (169, 236615), (185, 216151), (481, 83135), (845, 47323), (1279, 31265), (2405, 16627), (6253, 6395)]