78828160

素因数分解:

$2^7\times 5^1\times {\mathrm{123169}}^1$

素因数の和:123188

約数の個数: 32

約数和(自身を含む): 188450100

約数和(自身を除く): 109621940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 123169, 246338, 492676, 615845, 985352, 1231690, 1970704, 2463380, 3941408, 4926760, 7882816, 9853520, 15765632, 19707040, 39414080, 78828160]

約数ペア:

[(1, 78828160), (2, 39414080), (4, 19707040), (5, 15765632), (8, 9853520), (10, 7882816), (16, 4926760), (20, 3941408), (32, 2463380), (40, 1970704), (64, 1231690), (80, 985352), (128, 615845), (160, 492676), (320, 246338), (640, 123169)]