20900940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3449}}^1$

素因数の和:3562

約数の個数: 48

約数和(自身を含む): 59119200

約数和(自身を除く): 38218260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 3449, 6060, 6898, 10347, 13796, 17245, 20694, 34490, 41388, 51735, 68980, 103470, 206940, 348349, 696698, 1045047, 1393396, 1741745, 2090094, 3483490, 4180188, 5225235, 6966980, 10450470, 20900940]

約数ペア:

[(1, 20900940), (2, 10450470), (3, 6966980), (4, 5225235), (5, 4180188), (6, 3483490), (10, 2090094), (12, 1741745), (15, 1393396), (20, 1045047), (30, 696698), (60, 348349), (101, 206940), (202, 103470), (303, 68980), (404, 51735), (505, 41388), (606, 34490), (1010, 20694), (1212, 17245), (1515, 13796), (2020, 10347), (3030, 6898), (3449, 6060)]