201337540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{1997}}^1$

素因数の和:2148

約数の個数: 36

約数和(自身を含む): 429062508

約数和(自身を除く): 227724968

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1997, 3994, 5041, 7988, 9985, 10082, 19970, 20164, 25205, 39940, 50410, 100820, 141787, 283574, 567148, 708935, 1417870, 2835740, 10066877, 20133754, 40267508, 50334385, 100668770, 201337540]

約数ペア:

[(1, 201337540), (2, 100668770), (4, 50334385), (5, 40267508), (10, 20133754), (20, 10066877), (71, 2835740), (142, 1417870), (284, 708935), (355, 567148), (710, 283574), (1420, 141787), (1997, 100820), (3994, 50410), (5041, 39940), (7988, 25205), (9985, 20164), (10082, 19970)]