28745912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 62596800

約数和(自身を除く): 33850888

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 71, 104, 136, 142, 221, 229, 284, 442, 458, 568, 884, 916, 923, 1207, 1768, 1832, 1846, 2414, 2977, 3692, 3893, 4828, 5954, 7384, 7786, 9656, 11908, 15572, 15691, 16259, 23816, 31144, 31382, 32518, 50609, 62764, 65036, 101218, 125528, 130072, 202436, 211367, 276403, 404872, 422734, 552806, 845468, 1105612, 1690936, 2211224, 3593239, 7186478, 14372956, 28745912]

約数ペア:

[(1, 28745912), (2, 14372956), (4, 7186478), (8, 3593239), (13, 2211224), (17, 1690936), (26, 1105612), (34, 845468), (52, 552806), (68, 422734), (71, 404872), (104, 276403), (136, 211367), (142, 202436), (221, 130072), (229, 125528), (284, 101218), (442, 65036), (458, 62764), (568, 50609), (884, 32518), (916, 31382), (923, 31144), (1207, 23816), (1768, 16259), (1832, 15691), (1846, 15572), (2414, 11908), (2977, 9656), (3692, 7786), (3893, 7384), (4828, 5954)]