23071220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:384

約数の個数: 48

約数和(自身を含む): 50191680

約数和(自身を除く): 27120460

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 139, 172, 193, 215, 278, 386, 430, 556, 695, 772, 860, 965, 1390, 1930, 2780, 3860, 5977, 8299, 11954, 16598, 23908, 26827, 29885, 33196, 41495, 53654, 59770, 82990, 107308, 119540, 134135, 165980, 268270, 536540, 1153561, 2307122, 4614244, 5767805, 11535610, 23071220]

約数ペア:

[(1, 23071220), (2, 11535610), (4, 5767805), (5, 4614244), (10, 2307122), (20, 1153561), (43, 536540), (86, 268270), (139, 165980), (172, 134135), (193, 119540), (215, 107308), (278, 82990), (386, 59770), (430, 53654), (556, 41495), (695, 33196), (772, 29885), (860, 26827), (965, 23908), (1390, 16598), (1930, 11954), (2780, 8299), (3860, 5977)]