256216980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{4270283}}^1$

素因数の和:4270295

約数の個数: 24

約数和(自身を含む): 717407712

約数和(自身を除く): 461190732

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 4270283, 8540566, 12810849, 17081132, 21351415, 25621698, 42702830, 51243396, 64054245, 85405660, 128108490, 256216980]

約数ペア:

[(1, 256216980), (2, 128108490), (3, 85405660), (4, 64054245), (5, 51243396), (6, 42702830), (10, 25621698), (12, 21351415), (15, 17081132), (20, 12810849), (30, 8540566), (60, 4270283)]