25409720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90749}}^1$

素因数の和:90767

約数の個数: 32

約数和(自身を含む): 65340000

約数和(自身を除く): 39930280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90749, 181498, 362996, 453745, 635243, 725992, 907490, 1270486, 1814980, 2540972, 3176215, 3629960, 5081944, 6352430, 12704860, 25409720]

約数ペア:

[(1, 25409720), (2, 12704860), (4, 6352430), (5, 5081944), (7, 3629960), (8, 3176215), (10, 2540972), (14, 1814980), (20, 1270486), (28, 907490), (35, 725992), (40, 635243), (56, 453745), (70, 362996), (140, 181498), (280, 90749)]