40508780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{347}}^1\times {\mathrm{449}}^1$

素因数の和:818

約数の個数: 48

約数和(自身を含む): 92080800

約数和(自身を除く): 51572020

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 347, 449, 694, 898, 1388, 1735, 1796, 2245, 3470, 4490, 4511, 5837, 6940, 8980, 9022, 11674, 18044, 22555, 23348, 29185, 45110, 58370, 90220, 116740, 155803, 311606, 623212, 779015, 1558030, 2025439, 3116060, 4050878, 8101756, 10127195, 20254390, 40508780]

約数ペア:

[(1, 40508780), (2, 20254390), (4, 10127195), (5, 8101756), (10, 4050878), (13, 3116060), (20, 2025439), (26, 1558030), (52, 779015), (65, 623212), (130, 311606), (260, 155803), (347, 116740), (449, 90220), (694, 58370), (898, 45110), (1388, 29185), (1735, 23348), (1796, 22555), (2245, 18044), (3470, 11674), (4490, 9022), (4511, 8980), (5837, 6940)]