90982780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{649877}}^1$

素因数の和:649893

約数の個数: 24

約数和(自身を含む): 218359008

約数和(自身を除く): 127376228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 649877, 1299754, 2599508, 3249385, 4549139, 6498770, 9098278, 12997540, 18196556, 22745695, 45491390, 90982780]

約数ペア:

[(1, 90982780), (2, 45491390), (4, 22745695), (5, 18196556), (7, 12997540), (10, 9098278), (14, 6498770), (20, 4549139), (28, 3249385), (35, 2599508), (70, 1299754), (140, 649877)]