18488977460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2081}}^1\times {\mathrm{10331}}^1$

素因数の和:12464

約数の個数: 48

約数和(自身を含む): 39752741952

約数和(自身を除く): 21263764492

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 2081, 4162, 8324, 10331, 10405, 20662, 20810, 41324, 41620, 51655, 89483, 103310, 178966, 206620, 357932, 444233, 447415, 888466, 894830, 1776932, 1789660, 2221165, 4442330, 8884660, 21498811, 42997622, 85995244, 107494055, 214988110, 429976220, 924448873, 1848897746, 3697795492, 4622244365, 9244488730, 18488977460]

約数ペア:

[(1, 18488977460), (2, 9244488730), (4, 4622244365), (5, 3697795492), (10, 1848897746), (20, 924448873), (43, 429976220), (86, 214988110), (172, 107494055), (215, 85995244), (430, 42997622), (860, 21498811), (2081, 8884660), (4162, 4442330), (8324, 2221165), (10331, 1789660), (10405, 1776932), (20662, 894830), (20810, 888466), (41324, 447415), (41620, 444233), (51655, 357932), (89483, 206620), (103310, 178966)]