39815210

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{499}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 73440000

約数和(自身を除く): 33624790

約数列:

[1, 2, 5, 10, 79, 101, 158, 202, 395, 499, 505, 790, 998, 1010, 2495, 4990, 7979, 15958, 39421, 39895, 50399, 78842, 79790, 100798, 197105, 251995, 394210, 503990, 3981521, 7963042, 19907605, 39815210]

約数ペア:

[(1, 39815210), (2, 19907605), (5, 7963042), (10, 3981521), (79, 503990), (101, 394210), (158, 251995), (202, 197105), (395, 100798), (499, 79790), (505, 78842), (790, 50399), (998, 39895), (1010, 39421), (2495, 15958), (4990, 7979)]