20785060

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{11677}}^1$

素因数の和:11775

約数の個数: 24

約数和(自身を含む): 44142840

約数和(自身を除く): 23357780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 11677, 23354, 46708, 58385, 116770, 233540, 1039253, 2078506, 4157012, 5196265, 10392530, 20785060]

約数ペア:

[(1, 20785060), (2, 10392530), (4, 5196265), (5, 4157012), (10, 2078506), (20, 1039253), (89, 233540), (178, 116770), (356, 58385), (445, 46708), (890, 23354), (1780, 11677)]