31982240

素因数分解:

$2^5\times 5^1\times {\mathrm{199889}}^1$

素因数の和:199904

約数の個数: 24

約数和(自身を含む): 75558420

約数和(自身を除く): 43576180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199889, 399778, 799556, 999445, 1599112, 1998890, 3198224, 3997780, 6396448, 7995560, 15991120, 31982240]

約数ペア:

[(1, 31982240), (2, 15991120), (4, 7995560), (5, 6396448), (8, 3997780), (10, 3198224), (16, 1998890), (20, 1599112), (32, 999445), (40, 799556), (80, 399778), (160, 199889)]