66624520

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^2\times {\mathrm{157}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 152338860

約数和(自身を除く): 85714340

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 157, 206, 314, 412, 515, 628, 785, 824, 1030, 1256, 1570, 2060, 3140, 4120, 6280, 10609, 16171, 21218, 32342, 42436, 53045, 64684, 80855, 84872, 106090, 129368, 161710, 212180, 323420, 424360, 646840, 1665613, 3331226, 6662452, 8328065, 13324904, 16656130, 33312260, 66624520]

約数ペア:

[(1, 66624520), (2, 33312260), (4, 16656130), (5, 13324904), (8, 8328065), (10, 6662452), (20, 3331226), (40, 1665613), (103, 646840), (157, 424360), (206, 323420), (314, 212180), (412, 161710), (515, 129368), (628, 106090), (785, 84872), (824, 80855), (1030, 64684), (1256, 53045), (1570, 42436), (2060, 32342), (3140, 21218), (4120, 16171), (6280, 10609)]