399888

素因数分解:

$2^4\times 3^2\times {\mathrm{2777}}^1$

素因数の和:2791

約数の個数: 30

約数和(自身を含む): 1119534

約数和(自身を除く): 719646

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 2777, 5554, 8331, 11108, 16662, 22216, 24993, 33324, 44432, 49986, 66648, 99972, 133296, 199944, 399888]

約数ペア:

[(1, 399888), (2, 199944), (3, 133296), (4, 99972), (6, 66648), (8, 49986), (9, 44432), (12, 33324), (16, 24993), (18, 22216), (24, 16662), (36, 11108), (48, 8331), (72, 5554), (144, 2777)]