17769998870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{10781}}^1$

素因数の和:11241

約数の個数: 64

約数和(自身を含む): 35647879680

約数和(自身を除く): 17877880810

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 409, 806, 818, 2015, 2045, 4030, 4090, 5317, 10634, 10781, 12679, 21562, 25358, 26585, 53170, 53905, 63395, 107810, 126790, 140153, 164827, 280306, 329654, 334211, 668422, 700765, 824135, 1401530, 1648270, 1671055, 3342110, 4344743, 4409429, 8689486, 8818858, 21723715, 22047145, 43447430, 44094290, 57322577, 114645154, 136692299, 273384598, 286612885, 573225770, 683461495, 1366922990, 1776999887, 3553999774, 8884999435, 17769998870]

約数ペア:

[(1, 17769998870), (2, 8884999435), (5, 3553999774), (10, 1776999887), (13, 1366922990), (26, 683461495), (31, 573225770), (62, 286612885), (65, 273384598), (130, 136692299), (155, 114645154), (310, 57322577), (403, 44094290), (409, 43447430), (806, 22047145), (818, 21723715), (2015, 8818858), (2045, 8689486), (4030, 4409429), (4090, 4344743), (5317, 3342110), (10634, 1671055), (10781, 1648270), (12679, 1401530), (21562, 824135), (25358, 700765), (26585, 668422), (53170, 334211), (53905, 329654), (63395, 280306), (107810, 164827), (126790, 140153)]