209513820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{3491897}}^1$

素因数の和:3491909

約数の個数: 24

約数和(自身を含む): 586638864

約数和(自身を除く): 377125044

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 3491897, 6983794, 10475691, 13967588, 17459485, 20951382, 34918970, 41902764, 52378455, 69837940, 104756910, 209513820]

約数ペア:

[(1, 209513820), (2, 104756910), (3, 69837940), (4, 52378455), (5, 41902764), (6, 34918970), (10, 20951382), (12, 17459485), (15, 13967588), (20, 10475691), (30, 6983794), (60, 3491897)]