25685540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7879}}^1$

素因数の和:8051

約数の個数: 24

約数和(自身を含む): 54277440

約数和(自身を除く): 28591900

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 7879, 15758, 31516, 39395, 78790, 157580, 1284277, 2568554, 5137108, 6421385, 12842770, 25685540]

約数ペア:

[(1, 25685540), (2, 12842770), (4, 6421385), (5, 5137108), (10, 2568554), (20, 1284277), (163, 157580), (326, 78790), (652, 39395), (815, 31516), (1630, 15758), (3260, 7879)]