20297816

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 48142080

約数和(自身を除く): 27844264

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 83, 88, 154, 166, 308, 332, 397, 581, 616, 664, 794, 913, 1162, 1588, 1826, 2324, 2779, 3176, 3652, 4367, 4648, 5558, 6391, 7304, 8734, 11116, 12782, 17468, 22232, 25564, 30569, 32951, 34936, 51128, 61138, 65902, 122276, 131804, 230657, 244552, 263608, 362461, 461314, 724922, 922628, 1449844, 1845256, 2537227, 2899688, 5074454, 10148908, 20297816]

約数ペア:

[(1, 20297816), (2, 10148908), (4, 5074454), (7, 2899688), (8, 2537227), (11, 1845256), (14, 1449844), (22, 922628), (28, 724922), (44, 461314), (56, 362461), (77, 263608), (83, 244552), (88, 230657), (154, 131804), (166, 122276), (308, 65902), (332, 61138), (397, 51128), (581, 34936), (616, 32951), (664, 30569), (794, 25564), (913, 22232), (1162, 17468), (1588, 12782), (1826, 11116), (2324, 8734), (2779, 7304), (3176, 6391), (3652, 5558), (4367, 4648)]