128248020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{712489}}^1$

素因数の和:712504

約数の個数: 36

約数和(自身を含む): 389019540

約数和(自身を除く): 260771520

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 712489, 1424978, 2137467, 2849956, 3562445, 4274934, 6412401, 7124890, 8549868, 10687335, 12824802, 14249780, 21374670, 25649604, 32062005, 42749340, 64124010, 128248020]

約数ペア:

[(1, 128248020), (2, 64124010), (3, 42749340), (4, 32062005), (5, 25649604), (6, 21374670), (9, 14249780), (10, 12824802), (12, 10687335), (15, 8549868), (18, 7124890), (20, 6412401), (30, 4274934), (36, 3562445), (45, 2849956), (60, 2137467), (90, 1424978), (180, 712489)]