19984940

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2609}}^1$

素因数の和:3001

約数の個数: 24

約数和(自身を含む): 42094080

約数和(自身を除く): 22109140

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 2609, 3830, 5218, 7660, 10436, 13045, 26090, 52180, 999247, 1998494, 3996988, 4996235, 9992470, 19984940]

約数ペア:

[(1, 19984940), (2, 9992470), (4, 4996235), (5, 3996988), (10, 1998494), (20, 999247), (383, 52180), (766, 26090), (1532, 13045), (1915, 10436), (2609, 7660), (3830, 5218)]