489407620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{18637}}^1$

素因数の和:18760

約数の個数: 48

約数和(自身を含む): 1117832688

約数和(自身を除く): 628425068

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 101, 130, 202, 260, 404, 505, 1010, 1313, 2020, 2626, 5252, 6565, 13130, 18637, 26260, 37274, 74548, 93185, 186370, 242281, 372740, 484562, 969124, 1211405, 1882337, 2422810, 3764674, 4845620, 7529348, 9411685, 18823370, 24470381, 37646740, 48940762, 97881524, 122351905, 244703810, 489407620]

約数ペア:

[(1, 489407620), (2, 244703810), (4, 122351905), (5, 97881524), (10, 48940762), (13, 37646740), (20, 24470381), (26, 18823370), (52, 9411685), (65, 7529348), (101, 4845620), (130, 3764674), (202, 2422810), (260, 1882337), (404, 1211405), (505, 969124), (1010, 484562), (1313, 372740), (2020, 242281), (2626, 186370), (5252, 93185), (6565, 74548), (13130, 37274), (18637, 26260)]