13680620

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{1723}}^1$

素因数の和:2129

約数の個数: 24

約数和(自身を含む): 28818384

約数和(自身を除く): 15137764

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1723, 1985, 3446, 3970, 6892, 7940, 8615, 17230, 34460, 684031, 1368062, 2736124, 3420155, 6840310, 13680620]

約数ペア:

[(1, 13680620), (2, 6840310), (4, 3420155), (5, 2736124), (10, 1368062), (20, 684031), (397, 34460), (794, 17230), (1588, 8615), (1723, 7940), (1985, 6892), (3446, 3970)]