18184840

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1187}}^1$

素因数の和:1581

約数の個数: 32

約数和(自身を含む): 41057280

約数和(自身を除く): 22872440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1187, 1532, 1915, 2374, 3064, 3830, 4748, 5935, 7660, 9496, 11870, 15320, 23740, 47480, 454621, 909242, 1818484, 2273105, 3636968, 4546210, 9092420, 18184840]

約数ペア:

[(1, 18184840), (2, 9092420), (4, 4546210), (5, 3636968), (8, 2273105), (10, 1818484), (20, 909242), (40, 454621), (383, 47480), (766, 23740), (1187, 15320), (1532, 11870), (1915, 9496), (2374, 7660), (3064, 5935), (3830, 4748)]