20493090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{2089}}^1$

素因数の和:2211

約数の個数: 48

約数和(自身を含む): 53796600

約数和(自身を除く): 33303510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 109, 218, 327, 545, 654, 981, 1090, 1635, 1962, 2089, 3270, 4178, 4905, 6267, 9810, 10445, 12534, 18801, 20890, 31335, 37602, 62670, 94005, 188010, 227701, 455402, 683103, 1138505, 1366206, 2049309, 2277010, 3415515, 4098618, 6831030, 10246545, 20493090]

約数ペア:

[(1, 20493090), (2, 10246545), (3, 6831030), (5, 4098618), (6, 3415515), (9, 2277010), (10, 2049309), (15, 1366206), (18, 1138505), (30, 683103), (45, 455402), (90, 227701), (109, 188010), (218, 94005), (327, 62670), (545, 37602), (654, 31335), (981, 20890), (1090, 18801), (1635, 12534), (1962, 10445), (2089, 9810), (3270, 6267), (4178, 4905)]