19519980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{325333}}^1$

素因数の和:325345

約数の個数: 24

約数和(自身を含む): 54656112

約数和(自身を除く): 35136132

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 325333, 650666, 975999, 1301332, 1626665, 1951998, 3253330, 3903996, 4879995, 6506660, 9759990, 19519980]

約数ペア:

[(1, 19519980), (2, 9759990), (3, 6506660), (4, 4879995), (5, 3903996), (6, 3253330), (10, 1951998), (12, 1626665), (15, 1301332), (20, 975999), (30, 650666), (60, 325333)]