256046480

素因数分解:

$2^4\times 5^1\times {\mathrm{3200581}}^1$

素因数の和:3200594

約数の個数: 20

約数和(自身を含む): 595308252

約数和(自身を除く): 339261772

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3200581, 6401162, 12802324, 16002905, 25604648, 32005810, 51209296, 64011620, 128023240, 256046480]

約数ペア:

[(1, 256046480), (2, 128023240), (4, 64011620), (5, 51209296), (8, 32005810), (10, 25604648), (16, 16002905), (20, 12802324), (40, 6401162), (80, 3200581)]