209816740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{51679}}^1$

素因数の和:51724

約数の個数: 48

約数和(自身を含む): 520934400

約数和(自身を除く): 311117660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 51679, 103358, 206716, 258395, 361753, 516790, 723506, 1033580, 1447012, 1498691, 1808765, 2997382, 3617530, 5994764, 7235060, 7493455, 10490837, 14986910, 20981674, 29973820, 41963348, 52454185, 104908370, 209816740]

約数ペア:

[(1, 209816740), (2, 104908370), (4, 52454185), (5, 41963348), (7, 29973820), (10, 20981674), (14, 14986910), (20, 10490837), (28, 7493455), (29, 7235060), (35, 5994764), (58, 3617530), (70, 2997382), (116, 1808765), (140, 1498691), (145, 1447012), (203, 1033580), (290, 723506), (406, 516790), (580, 361753), (812, 258395), (1015, 206716), (2030, 103358), (4060, 51679)]