40407760

素因数分解:

$2^4\times 5^1\times {\mathrm{505097}}^1$

素因数の和:505110

約数の個数: 20

約数和(自身を含む): 93948228

約数和(自身を除く): 53540468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 505097, 1010194, 2020388, 2525485, 4040776, 5050970, 8081552, 10101940, 20203880, 40407760]

約数ペア:

[(1, 40407760), (2, 20203880), (4, 10101940), (5, 8081552), (8, 5050970), (10, 4040776), (16, 2525485), (20, 2020388), (40, 1010194), (80, 505097)]