2639220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43987}}^1$

素因数の和:43999

約数の個数: 24

約数和(自身を含む): 7389984

約数和(自身を除く): 4750764

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 43987, 87974, 131961, 175948, 219935, 263922, 439870, 527844, 659805, 879740, 1319610, 2639220]

約数ペア:

[(1, 2639220), (2, 1319610), (3, 879740), (4, 659805), (5, 527844), (6, 439870), (10, 263922), (12, 219935), (15, 175948), (20, 131961), (30, 87974), (60, 43987)]