57428020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{220877}}^1$

素因数の和:220899

約数の個数: 24

約数和(自身を含む): 129876264

約数和(自身を除く): 72448244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 220877, 441754, 883508, 1104385, 2208770, 2871401, 4417540, 5742802, 11485604, 14357005, 28714010, 57428020]

約数ペア:

[(1, 57428020), (2, 28714010), (4, 14357005), (5, 11485604), (10, 5742802), (13, 4417540), (20, 2871401), (26, 2208770), (52, 1104385), (65, 883508), (130, 441754), (260, 220877)]