156679280

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{19391}}^1$

素因数の和:19505

約数の個数: 40

約数和(自身を含む): 367905024

約数和(自身を除く): 211225744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 19391, 38782, 77564, 96955, 155128, 193910, 310256, 387820, 775640, 1551280, 1958491, 3916982, 7833964, 9792455, 15667928, 19584910, 31335856, 39169820, 78339640, 156679280]

約数ペア:

[(1, 156679280), (2, 78339640), (4, 39169820), (5, 31335856), (8, 19584910), (10, 15667928), (16, 9792455), (20, 7833964), (40, 3916982), (80, 1958491), (101, 1551280), (202, 775640), (404, 387820), (505, 310256), (808, 193910), (1010, 155128), (1616, 96955), (2020, 77564), (4040, 38782), (8080, 19391)]