71233840

素因数分解:

$2^4\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1039}}^1$

素因数の和:1909

約数の個数: 40

約数和(自身を含む): 165971520

約数和(自身を除く): 94737680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 857, 1039, 1714, 2078, 3428, 4156, 4285, 5195, 6856, 8312, 8570, 10390, 13712, 16624, 17140, 20780, 34280, 41560, 68560, 83120, 890423, 1780846, 3561692, 4452115, 7123384, 8904230, 14246768, 17808460, 35616920, 71233840]

約数ペア:

[(1, 71233840), (2, 35616920), (4, 17808460), (5, 14246768), (8, 8904230), (10, 7123384), (16, 4452115), (20, 3561692), (40, 1780846), (80, 890423), (857, 83120), (1039, 68560), (1714, 41560), (2078, 34280), (3428, 20780), (4156, 17140), (4285, 16624), (5195, 13712), (6856, 10390), (8312, 8570)]