20138555420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32481541}}^1$

素因数の和:32481581

約数の個数: 24

約数和(自身を含む): 43655192448

約数和(自身を除く): 23516637028

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32481541, 64963082, 129926164, 162407705, 324815410, 649630820, 1006927771, 2013855542, 4027711084, 5034638855, 10069277710, 20138555420]

約数ペア:

[(1, 20138555420), (2, 10069277710), (4, 5034638855), (5, 4027711084), (10, 2013855542), (20, 1006927771), (31, 649630820), (62, 324815410), (124, 162407705), (155, 129926164), (310, 64963082), (620, 32481541)]