18998660

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30643}}^1$

素因数の和:30683

約数の個数: 24

約数和(自身を含む): 41185536

約数和(自身を除く): 22186876

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 30643, 61286, 122572, 153215, 306430, 612860, 949933, 1899866, 3799732, 4749665, 9499330, 18998660]

約数ペア:

[(1, 18998660), (2, 9499330), (4, 4749665), (5, 3799732), (10, 1899866), (20, 949933), (31, 612860), (62, 306430), (124, 153215), (155, 122572), (310, 61286), (620, 30643)]