20365512720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{87211}}^1$

素因数の和:87373

約数の個数: 160

約数和(自身を含む): 72672015360

約数和(自身を除く): 52306502640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 139, 140, 168, 210, 240, 278, 280, 336, 417, 420, 556, 560, 695, 834, 840, 973, 1112, 1390, 1668, 1680, 1946, 2085, 2224, 2780, 2919, 3336, 3892, 4170, 4865, 5560, 5838, 6672, 7784, 8340, 9730, 11120, 11676, 14595, 15568, 16680, 19460, 23352, 29190, 33360, 38920, 46704, 58380, 77840, 87211, 116760, 174422, 233520, 261633, 348844, 436055, 523266, 610477, 697688, 872110, 1046532, 1220954, 1308165, 1395376, 1744220, 1831431, 2093064, 2441908, 2616330, 3052385, 3488440, 3662862, 4186128, 4883816, 5232660, 6104770, 6976880, 7325724, 9157155, 9767632, 10465320, 12122329, 12209540, 14651448, 18314310, 20930640, 24244658, 24419080, 29302896, 36366987, 36628620, 48489316, 48838160, 60611645, 72733974, 73257240, 84856303, 96978632, 121223290, 145467948, 146514480, 169712606, 181834935, 193957264, 242446580, 254568909, 290935896, 339425212, 363669870, 424281515, 484893160, 509137818, 581871792, 678850424, 727339740, 848563030, 969786320, 1018275636, 1272844545, 1357700848, 1454679480, 1697126060, 2036551272, 2545689090, 2909358960, 3394252120, 4073102544, 5091378180, 6788504240, 10182756360, 20365512720]

約数ペア:

[(1, 20365512720), (2, 10182756360), (3, 6788504240), (4, 5091378180), (5, 4073102544), (6, 3394252120), (7, 2909358960), (8, 2545689090), (10, 2036551272), (12, 1697126060), (14, 1454679480), (15, 1357700848), (16, 1272844545), (20, 1018275636), (21, 969786320), (24, 848563030), (28, 727339740), (30, 678850424), (35, 581871792), (40, 509137818), (42, 484893160), (48, 424281515), (56, 363669870), (60, 339425212), (70, 290935896), (80, 254568909), (84, 242446580), (105, 193957264), (112, 181834935), (120, 169712606), (139, 146514480), (140, 145467948), (168, 121223290), (210, 96978632), (240, 84856303), (278, 73257240), (280, 72733974), (336, 60611645), (417, 48838160), (420, 48489316), (556, 36628620), (560, 36366987), (695, 29302896), (834, 24419080), (840, 24244658), (973, 20930640), (1112, 18314310), (1390, 14651448), (1668, 12209540), (1680, 12122329), (1946, 10465320), (2085, 9767632), (2224, 9157155), (2780, 7325724), (2919, 6976880), (3336, 6104770), (3892, 5232660), (4170, 4883816), (4865, 4186128), (5560, 3662862), (5838, 3488440), (6672, 3052385), (7784, 2616330), (8340, 2441908), (9730, 2093064), (11120, 1831431), (11676, 1744220), (14595, 1395376), (15568, 1308165), (16680, 1220954), (19460, 1046532), (23352, 872110), (29190, 697688), (33360, 610477), (38920, 523266), (46704, 436055), (58380, 348844), (77840, 261633), (87211, 233520), (116760, 174422)]