18680560

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6311}}^1$

素因数の和:6361

約数の個数: 40

約数和(自身を含む): 44613216

約数和(自身を除く): 25932656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6311, 12622, 25244, 31555, 50488, 63110, 100976, 126220, 233507, 252440, 467014, 504880, 934028, 1167535, 1868056, 2335070, 3736112, 4670140, 9340280, 18680560]

約数ペア:

[(1, 18680560), (2, 9340280), (4, 4670140), (5, 3736112), (8, 2335070), (10, 1868056), (16, 1167535), (20, 934028), (37, 504880), (40, 467014), (74, 252440), (80, 233507), (148, 126220), (185, 100976), (296, 63110), (370, 50488), (592, 31555), (740, 25244), (1480, 12622), (2960, 6311)]