20661831490

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{155809}}^1$

素因数の和:156054

約数の個数: 32

約数和(自身を含む): 37861830000

約数和(自身を除く): 17199998510

約数列:

[1, 2, 5, 10, 89, 149, 178, 298, 445, 745, 890, 1490, 13261, 26522, 66305, 132610, 155809, 311618, 779045, 1558090, 13867001, 23215541, 27734002, 46431082, 69335005, 116077705, 138670010, 232155410, 2066183149, 4132366298, 10330915745, 20661831490]

約数ペア:

[(1, 20661831490), (2, 10330915745), (5, 4132366298), (10, 2066183149), (89, 232155410), (149, 138670010), (178, 116077705), (298, 69335005), (445, 46431082), (745, 27734002), (890, 23215541), (1490, 13867001), (13261, 1558090), (26522, 779045), (66305, 311618), (132610, 155809)]