20778730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2939}}^1$

素因数の和:3054

約数の個数: 32

約数和(自身を含む): 43182720

約数和(自身を除く): 22403990

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 101, 202, 505, 707, 1010, 1414, 2939, 3535, 5878, 7070, 14695, 20573, 29390, 41146, 102865, 205730, 296839, 593678, 1484195, 2077873, 2968390, 4155746, 10389365, 20778730]

約数ペア:

[(1, 20778730), (2, 10389365), (5, 4155746), (7, 2968390), (10, 2077873), (14, 1484195), (35, 593678), (70, 296839), (101, 205730), (202, 102865), (505, 41146), (707, 29390), (1010, 20573), (1414, 14695), (2939, 7070), (3535, 5878)]