218804980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{20681}}^1$

素因数の和:20736

約数の個数: 36

約数和(自身を含む): 480360132

約数和(自身を除く): 261555152

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 529, 1058, 2116, 2645, 5290, 10580, 20681, 41362, 82724, 103405, 206810, 413620, 475663, 951326, 1902652, 2378315, 4756630, 9513260, 10940249, 21880498, 43760996, 54701245, 109402490, 218804980]

約数ペア:

[(1, 218804980), (2, 109402490), (4, 54701245), (5, 43760996), (10, 21880498), (20, 10940249), (23, 9513260), (46, 4756630), (92, 2378315), (115, 1902652), (230, 951326), (460, 475663), (529, 413620), (1058, 206810), (2116, 103405), (2645, 82724), (5290, 41362), (10580, 20681)]