20581150

素因数分解:

$2^1\times 5^2\times {\mathrm{557}}^1\times {\mathrm{739}}^1$

素因数の和:1308

約数の個数: 24

約数和(自身を含む): 38401560

約数和(自身を除く): 17820410

約数列:

[1, 2, 5, 10, 25, 50, 557, 739, 1114, 1478, 2785, 3695, 5570, 7390, 13925, 18475, 27850, 36950, 411623, 823246, 2058115, 4116230, 10290575, 20581150]

約数ペア:

[(1, 20581150), (2, 10290575), (5, 4116230), (10, 2058115), (25, 823246), (50, 411623), (557, 36950), (739, 27850), (1114, 18475), (1478, 13925), (2785, 7390), (3695, 5570)]