20091900530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{811}}^1\times {\mathrm{1279}}^1$

素因数の和:2259

約数の個数: 64

約数和(自身を含む): 39287808000

約数和(自身を除く): 19195907470

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 149, 298, 745, 811, 1279, 1490, 1622, 1937, 2558, 3874, 4055, 6395, 8110, 9685, 10543, 12790, 16627, 19370, 21086, 33254, 52715, 83135, 105430, 120839, 166270, 190571, 241678, 381142, 604195, 952855, 1037269, 1208390, 1570907, 1905710, 2074538, 2477423, 3141814, 4954846, 5186345, 7854535, 10372690, 12387115, 13484497, 15709070, 24774230, 26968994, 67422485, 134844970, 154553081, 309106162, 772765405, 1545530810, 2009190053, 4018380106, 10045950265, 20091900530]

約数ペア:

[(1, 20091900530), (2, 10045950265), (5, 4018380106), (10, 2009190053), (13, 1545530810), (26, 772765405), (65, 309106162), (130, 154553081), (149, 134844970), (298, 67422485), (745, 26968994), (811, 24774230), (1279, 15709070), (1490, 13484497), (1622, 12387115), (1937, 10372690), (2558, 7854535), (3874, 5186345), (4055, 4954846), (6395, 3141814), (8110, 2477423), (9685, 2074538), (10543, 1905710), (12790, 1570907), (16627, 1208390), (19370, 1037269), (21086, 952855), (33254, 604195), (52715, 381142), (83135, 241678), (105430, 190571), (120839, 166270)]