18990970

素因数分解:

$2^1\times 5^1\times {\mathrm{229}}^1\times {\mathrm{8293}}^1$

素因数の和:8529

約数の個数: 16

約数和(自身を含む): 34337160

約数和(自身を除く): 15346190

約数列:

[1, 2, 5, 10, 229, 458, 1145, 2290, 8293, 16586, 41465, 82930, 1899097, 3798194, 9495485, 18990970]

約数ペア:

[(1, 18990970), (2, 9495485), (5, 3798194), (10, 1899097), (229, 82930), (458, 41465), (1145, 16586), (2290, 8293)]