28010420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{10691}}^1$

素因数の和:10831

約数の個数: 24

約数和(自身を含む): 59276448

約数和(自身を除く): 31266028

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 10691, 21382, 42764, 53455, 106910, 213820, 1400521, 2801042, 5602084, 7002605, 14005210, 28010420]

約数ペア:

[(1, 28010420), (2, 14005210), (4, 7002605), (5, 5602084), (10, 2801042), (20, 1400521), (131, 213820), (262, 106910), (524, 53455), (655, 42764), (1310, 21382), (2620, 10691)]