20492220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{503}}^1$

素因数の和:619

約数の個数: 96

約数和(自身を含む): 66382848

約数和(自身を除く): 45890628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 97, 105, 140, 194, 210, 291, 388, 420, 485, 503, 582, 679, 970, 1006, 1164, 1358, 1455, 1509, 1940, 2012, 2037, 2515, 2716, 2910, 3018, 3395, 3521, 4074, 5030, 5820, 6036, 6790, 7042, 7545, 8148, 10060, 10185, 10563, 13580, 14084, 15090, 17605, 20370, 21126, 30180, 35210, 40740, 42252, 48791, 52815, 70420, 97582, 105630, 146373, 195164, 211260, 243955, 292746, 341537, 487910, 585492, 683074, 731865, 975820, 1024611, 1366148, 1463730, 1707685, 2049222, 2927460, 3415370, 4098444, 5123055, 6830740, 10246110, 20492220]

約数ペア:

[(1, 20492220), (2, 10246110), (3, 6830740), (4, 5123055), (5, 4098444), (6, 3415370), (7, 2927460), (10, 2049222), (12, 1707685), (14, 1463730), (15, 1366148), (20, 1024611), (21, 975820), (28, 731865), (30, 683074), (35, 585492), (42, 487910), (60, 341537), (70, 292746), (84, 243955), (97, 211260), (105, 195164), (140, 146373), (194, 105630), (210, 97582), (291, 70420), (388, 52815), (420, 48791), (485, 42252), (503, 40740), (582, 35210), (679, 30180), (970, 21126), (1006, 20370), (1164, 17605), (1358, 15090), (1455, 14084), (1509, 13580), (1940, 10563), (2012, 10185), (2037, 10060), (2515, 8148), (2716, 7545), (2910, 7042), (3018, 6790), (3395, 6036), (3521, 5820), (4074, 5030)]