4225720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1187}}^1$

素因数の和:1287

約数の個数: 32

約数和(自身を含む): 9622800

約数和(自身を除く): 5397080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1187, 1780, 2374, 3560, 4748, 5935, 9496, 11870, 23740, 47480, 105643, 211286, 422572, 528215, 845144, 1056430, 2112860, 4225720]

約数ペア:

[(1, 4225720), (2, 2112860), (4, 1056430), (5, 845144), (8, 528215), (10, 422572), (20, 211286), (40, 105643), (89, 47480), (178, 23740), (356, 11870), (445, 9496), (712, 5935), (890, 4748), (1187, 3560), (1780, 2374)]