2157220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8297}}^1$

素因数の和:8319

約数の個数: 24

約数和(自身を含む): 4879224

約数和(自身を除く): 2722004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 8297, 16594, 33188, 41485, 82970, 107861, 165940, 215722, 431444, 539305, 1078610, 2157220]

約数ペア:

[(1, 2157220), (2, 1078610), (4, 539305), (5, 431444), (10, 215722), (13, 165940), (20, 107861), (26, 82970), (52, 41485), (65, 33188), (130, 16594), (260, 8297)]