8731640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11489}}^1$

素因数の和:11519

約数の個数: 32

約数和(自身を含む): 20682000

約数和(自身を除く): 11950360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 11489, 22978, 45956, 57445, 91912, 114890, 218291, 229780, 436582, 459560, 873164, 1091455, 1746328, 2182910, 4365820, 8731640]

約数ペア:

[(1, 8731640), (2, 4365820), (4, 2182910), (5, 1746328), (8, 1091455), (10, 873164), (19, 459560), (20, 436582), (38, 229780), (40, 218291), (76, 114890), (95, 91912), (152, 57445), (190, 45956), (380, 22978), (760, 11489)]