20108215

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{619}}^1$

素因数の和:786

約数の個数: 16

約数和(自身を含む): 24775200

約数和(自身を除く): 4666985

約数列:

[1, 5, 73, 89, 365, 445, 619, 3095, 6497, 32485, 45187, 55091, 225935, 275455, 4021643, 20108215]

約数ペア:

[(1, 20108215), (5, 4021643), (73, 275455), (89, 225935), (365, 55091), (445, 45187), (619, 32485), (3095, 6497)]