861082420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3914011}}^1$

素因数の和:3914031

約数の個数: 24

約数和(自身を含む): 1972662048

約数和(自身を除く): 1111579628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 3914011, 7828022, 15656044, 19570055, 39140110, 43054121, 78280220, 86108242, 172216484, 215270605, 430541210, 861082420]

約数ペア:

[(1, 861082420), (2, 430541210), (4, 215270605), (5, 172216484), (10, 86108242), (11, 78280220), (20, 43054121), (22, 39140110), (44, 19570055), (55, 15656044), (110, 7828022), (220, 3914011)]