8240540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5351}}^1$

素因数の和:5378

約数の個数: 48

約数和(自身を含む): 21579264

約数和(自身を除く): 13338724

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 5351, 10702, 21404, 26755, 37457, 53510, 58861, 74914, 107020, 117722, 149828, 187285, 235444, 294305, 374570, 412027, 588610, 749140, 824054, 1177220, 1648108, 2060135, 4120270, 8240540]

約数ペア:

[(1, 8240540), (2, 4120270), (4, 2060135), (5, 1648108), (7, 1177220), (10, 824054), (11, 749140), (14, 588610), (20, 412027), (22, 374570), (28, 294305), (35, 235444), (44, 187285), (55, 149828), (70, 117722), (77, 107020), (110, 74914), (140, 58861), (154, 53510), (220, 37457), (308, 26755), (385, 21404), (770, 10702), (1540, 5351)]