157213340

素因数分解:

$2^2\times 5^1\times {\mathrm{487}}^1\times {\mathrm{16141}}^1$

素因数の和:16637

約数の個数: 24

約数和(自身を含む): 330846432

約数和(自身を除く): 173633092

約数列:

[1, 2, 4, 5, 10, 20, 487, 974, 1948, 2435, 4870, 9740, 16141, 32282, 64564, 80705, 161410, 322820, 7860667, 15721334, 31442668, 39303335, 78606670, 157213340]

約数ペア:

[(1, 157213340), (2, 78606670), (4, 39303335), (5, 31442668), (10, 15721334), (20, 7860667), (487, 322820), (974, 161410), (1948, 80705), (2435, 64564), (4870, 32282), (9740, 16141)]