49147540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{449}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 111661200

約数和(自身を除く): 62513660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 421, 449, 842, 898, 1684, 1796, 2105, 2245, 4210, 4490, 5473, 5837, 8420, 8980, 10946, 11674, 21892, 23348, 27365, 29185, 54730, 58370, 109460, 116740, 189029, 378058, 756116, 945145, 1890290, 2457377, 3780580, 4914754, 9829508, 12286885, 24573770, 49147540]

約数ペア:

[(1, 49147540), (2, 24573770), (4, 12286885), (5, 9829508), (10, 4914754), (13, 3780580), (20, 2457377), (26, 1890290), (52, 945145), (65, 756116), (130, 378058), (260, 189029), (421, 116740), (449, 109460), (842, 58370), (898, 54730), (1684, 29185), (1796, 27365), (2105, 23348), (2245, 21892), (4210, 11674), (4490, 10946), (5473, 8980), (5837, 8420)]