5550040

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1559}}^1$

素因数の和:1659

約数の個数: 32

約数和(自身を含む): 12636000

約数和(自身を除く): 7085960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1559, 1780, 3118, 3560, 6236, 7795, 12472, 15590, 31180, 62360, 138751, 277502, 555004, 693755, 1110008, 1387510, 2775020, 5550040]

約数ペア:

[(1, 5550040), (2, 2775020), (4, 1387510), (5, 1110008), (8, 693755), (10, 555004), (20, 277502), (40, 138751), (89, 62360), (178, 31180), (356, 15590), (445, 12472), (712, 7795), (890, 6236), (1559, 3560), (1780, 3118)]