20259080

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{887}}^1$

素因数の和:1469

約数の個数: 32

約数和(自身を含む): 45714240

約数和(自身を除く): 25455160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 887, 1142, 1774, 2284, 2855, 3548, 4435, 4568, 5710, 7096, 8870, 11420, 17740, 22840, 35480, 506477, 1012954, 2025908, 2532385, 4051816, 5064770, 10129540, 20259080]

約数ペア:

[(1, 20259080), (2, 10129540), (4, 5064770), (5, 4051816), (8, 2532385), (10, 2025908), (20, 1012954), (40, 506477), (571, 35480), (887, 22840), (1142, 17740), (1774, 11420), (2284, 8870), (2855, 7096), (3548, 5710), (4435, 4568)]