423455440

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{197}}^1\times {\mathrm{277}}^1$

素因数の和:584

約数の個数: 80

約数和(自身を含む): 1003342032

約数和(自身を除く): 579886592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 197, 277, 388, 394, 485, 554, 776, 788, 970, 985, 1108, 1385, 1552, 1576, 1940, 1970, 2216, 2770, 3152, 3880, 3940, 4432, 5540, 7760, 7880, 11080, 15760, 19109, 22160, 26869, 38218, 53738, 54569, 76436, 95545, 107476, 109138, 134345, 152872, 191090, 214952, 218276, 268690, 272845, 305744, 382180, 429904, 436552, 537380, 545690, 764360, 873104, 1074760, 1091380, 1528720, 2149520, 2182760, 4365520, 5293193, 10586386, 21172772, 26465965, 42345544, 52931930, 84691088, 105863860, 211727720, 423455440]

約数ペア:

[(1, 423455440), (2, 211727720), (4, 105863860), (5, 84691088), (8, 52931930), (10, 42345544), (16, 26465965), (20, 21172772), (40, 10586386), (80, 5293193), (97, 4365520), (194, 2182760), (197, 2149520), (277, 1528720), (388, 1091380), (394, 1074760), (485, 873104), (554, 764360), (776, 545690), (788, 537380), (970, 436552), (985, 429904), (1108, 382180), (1385, 305744), (1552, 272845), (1576, 268690), (1940, 218276), (1970, 214952), (2216, 191090), (2770, 152872), (3152, 134345), (3880, 109138), (3940, 107476), (4432, 95545), (5540, 76436), (7760, 54569), (7880, 53738), (11080, 38218), (15760, 26869), (19109, 22160)]