81933020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{315127}}^1$

素因数の和:315149

約数の個数: 24

約数和(自身を含む): 185295264

約数和(自身を除く): 103362244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 315127, 630254, 1260508, 1575635, 3151270, 4096651, 6302540, 8193302, 16386604, 20483255, 40966510, 81933020]

約数ペア:

[(1, 81933020), (2, 40966510), (4, 20483255), (5, 16386604), (10, 8193302), (13, 6302540), (20, 4096651), (26, 3151270), (52, 1575635), (65, 1260508), (130, 630254), (260, 315127)]