8141720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2287}}^1$

素因数の和:2387

約数の個数: 32

約数和(自身を含む): 18532800

約数和(自身を除く): 10391080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2287, 3560, 4574, 9148, 11435, 18296, 22870, 45740, 91480, 203543, 407086, 814172, 1017715, 1628344, 2035430, 4070860, 8141720]

約数ペア:

[(1, 8141720), (2, 4070860), (4, 2035430), (5, 1628344), (8, 1017715), (10, 814172), (20, 407086), (40, 203543), (89, 91480), (178, 45740), (356, 22870), (445, 18296), (712, 11435), (890, 9148), (1780, 4574), (2287, 3560)]