8658860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 20987904

約数和(自身を除く): 12329044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 487, 508, 635, 889, 974, 1270, 1778, 1948, 2435, 2540, 3409, 3556, 4445, 4870, 6818, 8890, 9740, 13636, 17045, 17780, 34090, 61849, 68180, 123698, 247396, 309245, 432943, 618490, 865886, 1236980, 1731772, 2164715, 4329430, 8658860]

約数ペア:

[(1, 8658860), (2, 4329430), (4, 2164715), (5, 1731772), (7, 1236980), (10, 865886), (14, 618490), (20, 432943), (28, 309245), (35, 247396), (70, 123698), (127, 68180), (140, 61849), (254, 34090), (487, 17780), (508, 17045), (635, 13636), (889, 9740), (974, 8890), (1270, 6818), (1778, 4870), (1948, 4445), (2435, 3556), (2540, 3409)]