178591420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{613}}^1\times {\mathrm{2081}}^1$

素因数の和:2710

約数の個数: 48

約数和(自身を含む): 429524928

約数和(自身を除く): 250933508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 613, 1226, 2081, 2452, 3065, 4162, 4291, 6130, 8324, 8582, 10405, 12260, 14567, 17164, 20810, 21455, 29134, 41620, 42910, 58268, 72835, 85820, 145670, 291340, 1275653, 2551306, 5102612, 6378265, 8929571, 12756530, 17859142, 25513060, 35718284, 44647855, 89295710, 178591420]

約数ペア:

[(1, 178591420), (2, 89295710), (4, 44647855), (5, 35718284), (7, 25513060), (10, 17859142), (14, 12756530), (20, 8929571), (28, 6378265), (35, 5102612), (70, 2551306), (140, 1275653), (613, 291340), (1226, 145670), (2081, 85820), (2452, 72835), (3065, 58268), (4162, 42910), (4291, 41620), (6130, 29134), (8324, 21455), (8582, 20810), (10405, 17164), (12260, 14567)]