19704620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75787}}^1$

素因数の和:75809

約数の個数: 24

約数和(自身を含む): 44563344

約数和(自身を除く): 24858724

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75787, 151574, 303148, 378935, 757870, 985231, 1515740, 1970462, 3940924, 4926155, 9852310, 19704620]

約数ペア:

[(1, 19704620), (2, 9852310), (4, 4926155), (5, 3940924), (10, 1970462), (13, 1515740), (20, 985231), (26, 757870), (52, 378935), (65, 303148), (130, 151574), (260, 75787)]