201459640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{25309}}^1$

素因数の和:25519

約数の個数: 32

約数和(自身を含む): 455580000

約数和(自身を除く): 254120360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 25309, 50618, 101236, 126545, 202472, 253090, 506180, 1012360, 5036491, 10072982, 20145964, 25182455, 40291928, 50364910, 100729820, 201459640]

約数ペア:

[(1, 201459640), (2, 100729820), (4, 50364910), (5, 40291928), (8, 25182455), (10, 20145964), (20, 10072982), (40, 5036491), (199, 1012360), (398, 506180), (796, 253090), (995, 202472), (1592, 126545), (1990, 101236), (3980, 50618), (7960, 25309)]