20400330

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{1549}}^1$

素因数の和:1998

約数の個数: 32

約数和(自身を含む): 49104000

約数和(自身を除く): 28703670

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 439, 878, 1317, 1549, 2195, 2634, 3098, 4390, 4647, 6585, 7745, 9294, 13170, 15490, 23235, 46470, 680011, 1360022, 2040033, 3400055, 4080066, 6800110, 10200165, 20400330]

約数ペア:

[(1, 20400330), (2, 10200165), (3, 6800110), (5, 4080066), (6, 3400055), (10, 2040033), (15, 1360022), (30, 680011), (439, 46470), (878, 23235), (1317, 15490), (1549, 13170), (2195, 9294), (2634, 7745), (3098, 6585), (4390, 4647)]