890907980

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{82339}}^1$

素因数の和:82889

約数の個数: 24

約数和(自身を含む): 1874387760

約数和(自身を除く): 983479780

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 10820, 82339, 164678, 329356, 411695, 823390, 1646780, 44545399, 89090798, 178181596, 222726995, 445453990, 890907980]

約数ペア:

[(1, 890907980), (2, 445453990), (4, 222726995), (5, 178181596), (10, 89090798), (20, 44545399), (541, 1646780), (1082, 823390), (2164, 411695), (2705, 329356), (5410, 164678), (10820, 82339)]