18620120

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4799}}^1$

素因数の和:4907

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 23715880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 4799, 9598, 19196, 23995, 38392, 47990, 95980, 191960, 465503, 931006, 1862012, 2327515, 3724024, 4655030, 9310060, 18620120]

約数ペア:

[(1, 18620120), (2, 9310060), (4, 4655030), (5, 3724024), (8, 2327515), (10, 1862012), (20, 931006), (40, 465503), (97, 191960), (194, 95980), (388, 47990), (485, 38392), (776, 23995), (970, 19196), (1940, 9598), (3880, 4799)]