21717616660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1\times {\mathrm{128461}}^1$

素因数の和:128656

約数の個数: 48

約数和(自身を含む): 46616290560

約数和(自身を除く): 24898673900

約数列:

[1, 2, 4, 5, 10, 20, 79, 107, 158, 214, 316, 395, 428, 535, 790, 1070, 1580, 2140, 8453, 16906, 33812, 42265, 84530, 128461, 169060, 256922, 513844, 642305, 1284610, 2569220, 10148419, 13745327, 20296838, 27490654, 40593676, 50742095, 54981308, 68726635, 101484190, 137453270, 202968380, 274906540, 1085880833, 2171761666, 4343523332, 5429404165, 10858808330, 21717616660]

約数ペア:

[(1, 21717616660), (2, 10858808330), (4, 5429404165), (5, 4343523332), (10, 2171761666), (20, 1085880833), (79, 274906540), (107, 202968380), (158, 137453270), (214, 101484190), (316, 68726635), (395, 54981308), (428, 50742095), (535, 40593676), (790, 27490654), (1070, 20296838), (1580, 13745327), (2140, 10148419), (8453, 2569220), (16906, 1284610), (33812, 642305), (42265, 513844), (84530, 256922), (128461, 169060)]