20704736

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:795

約数の個数: 48

約数和(自身を含む): 44579808

約数和(自身を除く): 23875072

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 71, 104, 142, 208, 284, 416, 568, 701, 923, 1136, 1402, 1846, 2272, 2804, 3692, 5608, 7384, 9113, 11216, 14768, 18226, 22432, 29536, 36452, 49771, 72904, 99542, 145808, 199084, 291616, 398168, 647023, 796336, 1294046, 1592672, 2588092, 5176184, 10352368, 20704736]

約数ペア:

[(1, 20704736), (2, 10352368), (4, 5176184), (8, 2588092), (13, 1592672), (16, 1294046), (26, 796336), (32, 647023), (52, 398168), (71, 291616), (104, 199084), (142, 145808), (208, 99542), (284, 72904), (416, 49771), (568, 36452), (701, 29536), (923, 22432), (1136, 18226), (1402, 14768), (1846, 11216), (2272, 9113), (2804, 7384), (3692, 5608)]