209215240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{30949}}^1$

素因数の和:30986

約数の個数: 48

約数和(自身を含む): 509746500

約数和(自身を除く): 300531260

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 30949, 61898, 123796, 154745, 247592, 309490, 402337, 618980, 804674, 1237960, 1609348, 2011685, 3218696, 4023370, 5230381, 8046740, 10460762, 16093480, 20921524, 26151905, 41843048, 52303810, 104607620, 209215240]

約数ペア:

[(1, 209215240), (2, 104607620), (4, 52303810), (5, 41843048), (8, 26151905), (10, 20921524), (13, 16093480), (20, 10460762), (26, 8046740), (40, 5230381), (52, 4023370), (65, 3218696), (104, 2011685), (130, 1609348), (169, 1237960), (260, 804674), (338, 618980), (520, 402337), (676, 309490), (845, 247592), (1352, 154745), (1690, 123796), (3380, 61898), (6760, 30949)]