28645880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{17467}}^1$

素因数の和:17519

約数の個数: 32

約数和(自身を含む): 66029040

約数和(自身を除く): 37383160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 17467, 34934, 69868, 87335, 139736, 174670, 349340, 698680, 716147, 1432294, 2864588, 3580735, 5729176, 7161470, 14322940, 28645880]

約数ペア:

[(1, 28645880), (2, 14322940), (4, 7161470), (5, 5729176), (8, 3580735), (10, 2864588), (20, 1432294), (40, 716147), (41, 698680), (82, 349340), (164, 174670), (205, 139736), (328, 87335), (410, 69868), (820, 34934), (1640, 17467)]