4099640

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{907}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 9316080

約数和(自身を除く): 5216440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 907, 1130, 1814, 2260, 3628, 4520, 4535, 7256, 9070, 18140, 36280, 102491, 204982, 409964, 512455, 819928, 1024910, 2049820, 4099640]

約数ペア:

[(1, 4099640), (2, 2049820), (4, 1024910), (5, 819928), (8, 512455), (10, 409964), (20, 204982), (40, 102491), (113, 36280), (226, 18140), (452, 9070), (565, 7256), (904, 4535), (907, 4520), (1130, 3628), (1814, 2260)]