20709510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 51710400

約数和(自身を除く): 31000890

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 113, 123, 149, 205, 226, 246, 298, 339, 410, 447, 565, 615, 678, 745, 894, 1130, 1230, 1490, 1695, 2235, 3390, 4470, 4633, 6109, 9266, 12218, 13899, 16837, 18327, 23165, 27798, 30545, 33674, 36654, 46330, 50511, 61090, 69495, 84185, 91635, 101022, 138990, 168370, 183270, 252555, 505110, 690317, 1380634, 2070951, 3451585, 4141902, 6903170, 10354755, 20709510]

約数ペア:

[(1, 20709510), (2, 10354755), (3, 6903170), (5, 4141902), (6, 3451585), (10, 2070951), (15, 1380634), (30, 690317), (41, 505110), (82, 252555), (113, 183270), (123, 168370), (149, 138990), (205, 101022), (226, 91635), (246, 84185), (298, 69495), (339, 61090), (410, 50511), (447, 46330), (565, 36654), (615, 33674), (678, 30545), (745, 27798), (894, 23165), (1130, 18327), (1230, 16837), (1490, 13899), (1695, 12218), (2235, 9266), (3390, 6109), (4470, 4633)]