1980250

素因数分解:

$2^1\times 5^3\times {\mathrm{89}}^2$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 3749148

約数和(自身を除く): 1768898

約数列:

[1, 2, 5, 10, 25, 50, 89, 125, 178, 250, 445, 890, 2225, 4450, 7921, 11125, 15842, 22250, 39605, 79210, 198025, 396050, 990125, 1980250]

約数ペア:

[(1, 1980250), (2, 990125), (5, 396050), (10, 198025), (25, 79210), (50, 39605), (89, 22250), (125, 15842), (178, 11125), (250, 7921), (445, 4450), (890, 2225)]