218798980

素因数分解:

$2^2\times 5^1\times {\mathrm{2273}}^1\times {\mathrm{4813}}^1$

素因数の和:7095

約数の個数: 24

約数和(自身を含む): 459775512

約数和(自身を除く): 240976532

約数列:

[1, 2, 4, 5, 10, 20, 2273, 4546, 4813, 9092, 9626, 11365, 19252, 22730, 24065, 45460, 48130, 96260, 10939949, 21879898, 43759796, 54699745, 109399490, 218798980]

約数ペア:

[(1, 218798980), (2, 109399490), (4, 54699745), (5, 43759796), (10, 21879898), (20, 10939949), (2273, 96260), (4546, 48130), (4813, 45460), (9092, 24065), (9626, 22730), (11365, 19252)]