81729400

素因数分解:

$2^3\times 5^2\times {\mathrm{41}}^1\times {\mathrm{9967}}^1$

素因数の和:10024

約数の個数: 48

約数和(自身を含む): 194675040

約数和(自身を除く): 112945640

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 164, 200, 205, 328, 410, 820, 1025, 1640, 2050, 4100, 8200, 9967, 19934, 39868, 49835, 79736, 99670, 199340, 249175, 398680, 408647, 498350, 817294, 996700, 1634588, 1993400, 2043235, 3269176, 4086470, 8172940, 10216175, 16345880, 20432350, 40864700, 81729400]

約数ペア:

[(1, 81729400), (2, 40864700), (4, 20432350), (5, 16345880), (8, 10216175), (10, 8172940), (20, 4086470), (25, 3269176), (40, 2043235), (41, 1993400), (50, 1634588), (82, 996700), (100, 817294), (164, 498350), (200, 408647), (205, 398680), (328, 249175), (410, 199340), (820, 99670), (1025, 79736), (1640, 49835), (2050, 39868), (4100, 19934), (8200, 9967)]