25684240

素因数分解:

$2^4\times 5^1\times {\mathrm{321053}}^1$

素因数の和:321066

約数の個数: 20

約数和(自身を含む): 59716044

約数和(自身を除く): 34031804

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 321053, 642106, 1284212, 1605265, 2568424, 3210530, 5136848, 6421060, 12842120, 25684240]

約数ペア:

[(1, 25684240), (2, 12842120), (4, 6421060), (5, 5136848), (8, 3210530), (10, 2568424), (16, 1605265), (20, 1284212), (40, 642106), (80, 321053)]