20322272

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{359}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 21862528

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 61, 116, 122, 232, 244, 359, 464, 488, 718, 928, 976, 1436, 1769, 1952, 2872, 3538, 5744, 7076, 10411, 11488, 14152, 20822, 21899, 28304, 41644, 43798, 56608, 83288, 87596, 166576, 175192, 333152, 350384, 635071, 700768, 1270142, 2540284, 5080568, 10161136, 20322272]

約数ペア:

[(1, 20322272), (2, 10161136), (4, 5080568), (8, 2540284), (16, 1270142), (29, 700768), (32, 635071), (58, 350384), (61, 333152), (116, 175192), (122, 166576), (232, 87596), (244, 83288), (359, 56608), (464, 43798), (488, 41644), (718, 28304), (928, 21899), (976, 20822), (1436, 14152), (1769, 11488), (1952, 10411), (2872, 7076), (3538, 5744)]