17444180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^3\times {\mathrm{397}}^1$

素因数の和:445

約数の個数: 48

約数和(自身を含む): 39784080

約数和(自身を除く): 22339900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 397, 676, 794, 845, 1588, 1690, 1985, 2197, 3380, 3970, 4394, 5161, 7940, 8788, 10322, 10985, 20644, 21970, 25805, 43940, 51610, 67093, 103220, 134186, 268372, 335465, 670930, 872209, 1341860, 1744418, 3488836, 4361045, 8722090, 17444180]

約数ペア:

[(1, 17444180), (2, 8722090), (4, 4361045), (5, 3488836), (10, 1744418), (13, 1341860), (20, 872209), (26, 670930), (52, 335465), (65, 268372), (130, 134186), (169, 103220), (260, 67093), (338, 51610), (397, 43940), (676, 25805), (794, 21970), (845, 20644), (1588, 10985), (1690, 10322), (1985, 8788), (2197, 7940), (3380, 5161), (3970, 4394)]