20359990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1123}}^1$

素因数の和:1181

約数の個数: 48

約数和(自身を含む): 43822512

約数和(自身を除く): 23462522

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 49, 70, 74, 98, 185, 245, 259, 370, 490, 518, 1123, 1295, 1813, 2246, 2590, 3626, 5615, 7861, 9065, 11230, 15722, 18130, 39305, 41551, 55027, 78610, 83102, 110054, 207755, 275135, 290857, 415510, 550270, 581714, 1454285, 2035999, 2908570, 4071998, 10179995, 20359990]

約数ペア:

[(1, 20359990), (2, 10179995), (5, 4071998), (7, 2908570), (10, 2035999), (14, 1454285), (35, 581714), (37, 550270), (49, 415510), (70, 290857), (74, 275135), (98, 207755), (185, 110054), (245, 83102), (259, 78610), (370, 55027), (490, 41551), (518, 39305), (1123, 18130), (1295, 15722), (1813, 11230), (2246, 9065), (2590, 7861), (3626, 5615)]