666160

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{757}}^1$

素因数の和:781

約数の個数: 40

約数和(自身を含む): 1691856

約数和(自身を除く): 1025696

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 757, 880, 1514, 3028, 3785, 6056, 7570, 8327, 12112, 15140, 16654, 30280, 33308, 41635, 60560, 66616, 83270, 133232, 166540, 333080, 666160]

約数ペア:

[(1, 666160), (2, 333080), (4, 166540), (5, 133232), (8, 83270), (10, 66616), (11, 60560), (16, 41635), (20, 33308), (22, 30280), (40, 16654), (44, 15140), (55, 12112), (80, 8327), (88, 7570), (110, 6056), (176, 3785), (220, 3028), (440, 1514), (757, 880)]