205161180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{661}}^1\times {\mathrm{739}}^1$

素因数の和:1419

約数の個数: 96

約数和(自身を含む): 658398720

約数和(自身を除く): 453237540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 661, 739, 1322, 1478, 1983, 2217, 2644, 2956, 3305, 3695, 3966, 4434, 4627, 5173, 6610, 7390, 7932, 8868, 9254, 9915, 10346, 11085, 13220, 13881, 14780, 15519, 18508, 19830, 20692, 22170, 23135, 25865, 27762, 31038, 39660, 44340, 46270, 51730, 55524, 62076, 69405, 77595, 92540, 103460, 138810, 155190, 277620, 310380, 488479, 976958, 1465437, 1953916, 2442395, 2930874, 3419353, 4884790, 5861748, 6838706, 7327185, 9769580, 10258059, 13677412, 14654370, 17096765, 20516118, 29308740, 34193530, 41032236, 51290295, 68387060, 102580590, 205161180]

約数ペア:

[(1, 205161180), (2, 102580590), (3, 68387060), (4, 51290295), (5, 41032236), (6, 34193530), (7, 29308740), (10, 20516118), (12, 17096765), (14, 14654370), (15, 13677412), (20, 10258059), (21, 9769580), (28, 7327185), (30, 6838706), (35, 5861748), (42, 4884790), (60, 3419353), (70, 2930874), (84, 2442395), (105, 1953916), (140, 1465437), (210, 976958), (420, 488479), (661, 310380), (739, 277620), (1322, 155190), (1478, 138810), (1983, 103460), (2217, 92540), (2644, 77595), (2956, 69405), (3305, 62076), (3695, 55524), (3966, 51730), (4434, 46270), (4627, 44340), (5173, 39660), (6610, 31038), (7390, 27762), (7932, 25865), (8868, 23135), (9254, 22170), (9915, 20692), (10346, 19830), (11085, 18508), (13220, 15519), (13881, 14780)]