20416289040

素因数分解:

$2^4\times 3^2\times 5^1\times 7^2\times {\mathrm{578693}}^1$

素因数の和:578726

約数の個数: 180

約数和(自身を含む): 79759079244

約数和(自身を除く): 59342790204

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 49, 56, 60, 63, 70, 72, 80, 84, 90, 98, 105, 112, 120, 126, 140, 144, 147, 168, 180, 196, 210, 240, 245, 252, 280, 294, 315, 336, 360, 392, 420, 441, 490, 504, 560, 588, 630, 720, 735, 784, 840, 882, 980, 1008, 1176, 1260, 1470, 1680, 1764, 1960, 2205, 2352, 2520, 2940, 3528, 3920, 4410, 5040, 5880, 7056, 8820, 11760, 17640, 35280, 578693, 1157386, 1736079, 2314772, 2893465, 3472158, 4050851, 4629544, 5208237, 5786930, 6944316, 8101702, 8680395, 9259088, 10416474, 11573860, 12152553, 13888632, 16203404, 17360790, 20254255, 20832948, 23147720, 24305106, 26041185, 27777264, 28355957, 32406808, 34721580, 36457659, 40508510, 41665896, 46295440, 48610212, 52082370, 56711914, 60762765, 64813616, 69443160, 72915318, 81017020, 83331792, 85067871, 97220424, 104164740, 113423828, 121525530, 138886320, 141779785, 145830636, 162034040, 170135742, 182288295, 194440848, 208329480, 226847656, 243051060, 255203613, 283559570, 291661272, 324068080, 340271484, 364576590, 416658960, 425339355, 453695312, 486102120, 510407226, 567119140, 583322544, 680542968, 729153180, 850678710, 972204240, 1020814452, 1134238280, 1276018065, 1361085936, 1458306360, 1701357420, 2041628904, 2268476560, 2552036130, 2916612720, 3402714840, 4083257808, 5104072260, 6805429680, 10208144520, 20416289040]

約数ペア:

[(1, 20416289040), (2, 10208144520), (3, 6805429680), (4, 5104072260), (5, 4083257808), (6, 3402714840), (7, 2916612720), (8, 2552036130), (9, 2268476560), (10, 2041628904), (12, 1701357420), (14, 1458306360), (15, 1361085936), (16, 1276018065), (18, 1134238280), (20, 1020814452), (21, 972204240), (24, 850678710), (28, 729153180), (30, 680542968), (35, 583322544), (36, 567119140), (40, 510407226), (42, 486102120), (45, 453695312), (48, 425339355), (49, 416658960), (56, 364576590), (60, 340271484), (63, 324068080), (70, 291661272), (72, 283559570), (80, 255203613), (84, 243051060), (90, 226847656), (98, 208329480), (105, 194440848), (112, 182288295), (120, 170135742), (126, 162034040), (140, 145830636), (144, 141779785), (147, 138886320), (168, 121525530), (180, 113423828), (196, 104164740), (210, 97220424), (240, 85067871), (245, 83331792), (252, 81017020), (280, 72915318), (294, 69443160), (315, 64813616), (336, 60762765), (360, 56711914), (392, 52082370), (420, 48610212), (441, 46295440), (490, 41665896), (504, 40508510), (560, 36457659), (588, 34721580), (630, 32406808), (720, 28355957), (735, 27777264), (784, 26041185), (840, 24305106), (882, 23147720), (980, 20832948), (1008, 20254255), (1176, 17360790), (1260, 16203404), (1470, 13888632), (1680, 12152553), (1764, 11573860), (1960, 10416474), (2205, 9259088), (2352, 8680395), (2520, 8101702), (2940, 6944316), (3528, 5786930), (3920, 5208237), (4410, 4629544), (5040, 4050851), (5880, 3472158), (7056, 2893465), (8820, 2314772), (11760, 1736079), (17640, 1157386), (35280, 578693)]