87957220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{338297}}^1$

素因数の和:338319

約数の個数: 24

約数和(自身を含む): 198919224

約数和(自身を除く): 110962004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 338297, 676594, 1353188, 1691485, 3382970, 4397861, 6765940, 8795722, 17591444, 21989305, 43978610, 87957220]

約数ペア:

[(1, 87957220), (2, 43978610), (4, 21989305), (5, 17591444), (10, 8795722), (13, 6765940), (20, 4397861), (26, 3382970), (52, 1691485), (65, 1353188), (130, 676594), (260, 338297)]