20168220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{2141}}^1$

素因数の和:2310

約数の個数: 48

約数和(自身を含む): 56857248

約数和(自身を除く): 36689028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 157, 314, 471, 628, 785, 942, 1570, 1884, 2141, 2355, 3140, 4282, 4710, 6423, 8564, 9420, 10705, 12846, 21410, 25692, 32115, 42820, 64230, 128460, 336137, 672274, 1008411, 1344548, 1680685, 2016822, 3361370, 4033644, 5042055, 6722740, 10084110, 20168220]

約数ペア:

[(1, 20168220), (2, 10084110), (3, 6722740), (4, 5042055), (5, 4033644), (6, 3361370), (10, 2016822), (12, 1680685), (15, 1344548), (20, 1008411), (30, 672274), (60, 336137), (157, 128460), (314, 64230), (471, 42820), (628, 32115), (785, 25692), (942, 21410), (1570, 12846), (1884, 10705), (2141, 9420), (2355, 8564), (3140, 6423), (4282, 4710)]