15390020

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7933}}^1$

素因数の和:8039

約数の個数: 24

約数和(自身を含む): 32656344

約数和(自身を除く): 17266324

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 7933, 15866, 31732, 39665, 79330, 158660, 769501, 1539002, 3078004, 3847505, 7695010, 15390020]

約数ペア:

[(1, 15390020), (2, 7695010), (4, 3847505), (5, 3078004), (10, 1539002), (20, 769501), (97, 158660), (194, 79330), (388, 39665), (485, 31732), (970, 15866), (1940, 7933)]