1231718980

素因数分解:

$2^2\times 5^1\times {\mathrm{6761}}^1\times {\mathrm{9109}}^1$

素因数の和:15879

約数の個数: 24

約数和(自身を含む): 2587276440

約数和(自身を除く): 1355557460

約数列:

[1, 2, 4, 5, 10, 20, 6761, 9109, 13522, 18218, 27044, 33805, 36436, 45545, 67610, 91090, 135220, 182180, 61585949, 123171898, 246343796, 307929745, 615859490, 1231718980]

約数ペア:

[(1, 1231718980), (2, 615859490), (4, 307929745), (5, 246343796), (10, 123171898), (20, 61585949), (6761, 182180), (9109, 135220), (13522, 91090), (18218, 67610), (27044, 45545), (33805, 36436)]