665293856

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{443}}^1\times {\mathrm{661}}^1$

素因数の和:1185

約数の個数: 48

約数和(自身を含む): 1333257408

約数和(自身を除く): 667963552

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 443, 568, 661, 886, 1136, 1322, 1772, 2272, 2644, 3544, 5288, 7088, 10576, 14176, 21152, 31453, 46931, 62906, 93862, 125812, 187724, 251624, 292823, 375448, 503248, 585646, 750896, 1006496, 1171292, 1501792, 2342584, 4685168, 9370336, 20790433, 41580866, 83161732, 166323464, 332646928, 665293856]

約数ペア:

[(1, 665293856), (2, 332646928), (4, 166323464), (8, 83161732), (16, 41580866), (32, 20790433), (71, 9370336), (142, 4685168), (284, 2342584), (443, 1501792), (568, 1171292), (661, 1006496), (886, 750896), (1136, 585646), (1322, 503248), (1772, 375448), (2272, 292823), (2644, 251624), (3544, 187724), (5288, 125812), (7088, 93862), (10576, 62906), (14176, 46931), (21152, 31453)]