131163280

素因数分解:

$2^4\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1861}}^1$

素因数の和:2755

約数の個数: 40

約数和(自身を含む): 305464824

約数和(自身を除く): 174301544

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 881, 1762, 1861, 3524, 3722, 4405, 7048, 7444, 8810, 9305, 14096, 14888, 17620, 18610, 29776, 35240, 37220, 70480, 74440, 148880, 1639541, 3279082, 6558164, 8197705, 13116328, 16395410, 26232656, 32790820, 65581640, 131163280]

約数ペア:

[(1, 131163280), (2, 65581640), (4, 32790820), (5, 26232656), (8, 16395410), (10, 13116328), (16, 8197705), (20, 6558164), (40, 3279082), (80, 1639541), (881, 148880), (1762, 74440), (1861, 70480), (3524, 37220), (3722, 35240), (4405, 29776), (7048, 18610), (7444, 17620), (8810, 14888), (9305, 14096)]