19966310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{593}}^1$

素因数の和:657

約数の個数: 64

約数和(自身を含む): 45505152

約数和(自身を除く): 25538842

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 37, 65, 70, 74, 91, 130, 182, 185, 259, 370, 455, 481, 518, 593, 910, 962, 1186, 1295, 2405, 2590, 2965, 3367, 4151, 4810, 5930, 6734, 7709, 8302, 15418, 16835, 20755, 21941, 33670, 38545, 41510, 43882, 53963, 77090, 107926, 109705, 153587, 219410, 269815, 285233, 307174, 539630, 570466, 767935, 1426165, 1535870, 1996631, 2852330, 3993262, 9983155, 19966310]

約数ペア:

[(1, 19966310), (2, 9983155), (5, 3993262), (7, 2852330), (10, 1996631), (13, 1535870), (14, 1426165), (26, 767935), (35, 570466), (37, 539630), (65, 307174), (70, 285233), (74, 269815), (91, 219410), (130, 153587), (182, 109705), (185, 107926), (259, 77090), (370, 53963), (455, 43882), (481, 41510), (518, 38545), (593, 33670), (910, 21941), (962, 20755), (1186, 16835), (1295, 15418), (2405, 8302), (2590, 7709), (2965, 6734), (3367, 5930), (4151, 4810)]