9899080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4057}}^1$

素因数の和:4129

約数の個数: 32

約数和(自身を含む): 22643640

約数和(自身を除く): 12744560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 4057, 8114, 16228, 20285, 32456, 40570, 81140, 162280, 247477, 494954, 989908, 1237385, 1979816, 2474770, 4949540, 9899080]

約数ペア:

[(1, 9899080), (2, 4949540), (4, 2474770), (5, 1979816), (8, 1237385), (10, 989908), (20, 494954), (40, 247477), (61, 162280), (122, 81140), (244, 40570), (305, 32456), (488, 20285), (610, 16228), (1220, 8114), (2440, 4057)]