18746020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{22861}}^1$

素因数の和:22911

約数の個数: 24

約数和(自身を含む): 40328568

約数和(自身を除く): 21582548

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 22861, 45722, 91444, 114305, 228610, 457220, 937301, 1874602, 3749204, 4686505, 9373010, 18746020]

約数ペア:

[(1, 18746020), (2, 9373010), (4, 4686505), (5, 3749204), (10, 1874602), (20, 937301), (41, 457220), (82, 228610), (164, 114305), (205, 91444), (410, 45722), (820, 22861)]