40727540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{691}}^1$

素因数の和:1128

約数の個数: 48

約数和(自身を含む): 98120064

約数和(自身を除く): 57392524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 691, 842, 1382, 1684, 2105, 2764, 2947, 3455, 4210, 4837, 5894, 6910, 8420, 9674, 11788, 13820, 14735, 19348, 24185, 29470, 48370, 58940, 96740, 290911, 581822, 1163644, 1454555, 2036377, 2909110, 4072754, 5818220, 8145508, 10181885, 20363770, 40727540]

約数ペア:

[(1, 40727540), (2, 20363770), (4, 10181885), (5, 8145508), (7, 5818220), (10, 4072754), (14, 2909110), (20, 2036377), (28, 1454555), (35, 1163644), (70, 581822), (140, 290911), (421, 96740), (691, 58940), (842, 48370), (1382, 29470), (1684, 24185), (2105, 19348), (2764, 14735), (2947, 13820), (3455, 11788), (4210, 9674), (4837, 8420), (5894, 6910)]