71388792080

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1387807}}^1$

素因数の和:1388463

約数の個数: 40

約数和(自身を含む): 166237193472

約数和(自身を除く): 94848401392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1286, 2572, 3215, 5144, 6430, 10288, 12860, 25720, 51440, 1387807, 2775614, 5551228, 6939035, 11102456, 13878070, 22204912, 27756140, 55512280, 111024560, 892359901, 1784719802, 3569439604, 4461799505, 7138879208, 8923599010, 14277758416, 17847198020, 35694396040, 71388792080]

約数ペア:

[(1, 71388792080), (2, 35694396040), (4, 17847198020), (5, 14277758416), (8, 8923599010), (10, 7138879208), (16, 4461799505), (20, 3569439604), (40, 1784719802), (80, 892359901), (643, 111024560), (1286, 55512280), (2572, 27756140), (3215, 22204912), (5144, 13878070), (6430, 11102456), (10288, 6939035), (12860, 5551228), (25720, 2775614), (51440, 1387807)]