640240272

素因数分解:

$2^4\times 3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2927}}^1$

素因数の和:2986

約数の個数: 180

約数和(自身を含む): 2152290816

約数和(自身を除く): 1512050544

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 36, 42, 48, 49, 56, 62, 63, 72, 84, 93, 98, 112, 124, 126, 144, 147, 168, 186, 196, 217, 248, 252, 279, 294, 336, 372, 392, 434, 441, 496, 504, 558, 588, 651, 744, 784, 868, 882, 1008, 1116, 1176, 1302, 1488, 1519, 1736, 1764, 1953, 2232, 2352, 2604, 2927, 3038, 3472, 3528, 3906, 4464, 4557, 5208, 5854, 6076, 7056, 7812, 8781, 9114, 10416, 11708, 12152, 13671, 15624, 17562, 18228, 20489, 23416, 24304, 26343, 27342, 31248, 35124, 36456, 40978, 46832, 52686, 54684, 61467, 70248, 72912, 81956, 90737, 105372, 109368, 122934, 140496, 143423, 163912, 181474, 184401, 210744, 218736, 245868, 272211, 286846, 327824, 362948, 368802, 421488, 430269, 491736, 544422, 573692, 635159, 725896, 737604, 816633, 860538, 983472, 1088844, 1147384, 1270318, 1290807, 1451792, 1475208, 1633266, 1721076, 1905477, 2177688, 2294768, 2540636, 2581614, 2950416, 3266532, 3442152, 3810954, 4355376, 4446113, 5081272, 5163228, 5716431, 6533064, 6884304, 7621908, 8892226, 10162544, 10326456, 11432862, 13066128, 13338339, 15243816, 17784452, 20652912, 22865724, 26676678, 30487632, 35568904, 40015017, 45731448, 53353356, 71137808, 80030034, 91462896, 106706712, 160060068, 213413424, 320120136, 640240272]

約数ペア:

[(1, 640240272), (2, 320120136), (3, 213413424), (4, 160060068), (6, 106706712), (7, 91462896), (8, 80030034), (9, 71137808), (12, 53353356), (14, 45731448), (16, 40015017), (18, 35568904), (21, 30487632), (24, 26676678), (28, 22865724), (31, 20652912), (36, 17784452), (42, 15243816), (48, 13338339), (49, 13066128), (56, 11432862), (62, 10326456), (63, 10162544), (72, 8892226), (84, 7621908), (93, 6884304), (98, 6533064), (112, 5716431), (124, 5163228), (126, 5081272), (144, 4446113), (147, 4355376), (168, 3810954), (186, 3442152), (196, 3266532), (217, 2950416), (248, 2581614), (252, 2540636), (279, 2294768), (294, 2177688), (336, 1905477), (372, 1721076), (392, 1633266), (434, 1475208), (441, 1451792), (496, 1290807), (504, 1270318), (558, 1147384), (588, 1088844), (651, 983472), (744, 860538), (784, 816633), (868, 737604), (882, 725896), (1008, 635159), (1116, 573692), (1176, 544422), (1302, 491736), (1488, 430269), (1519, 421488), (1736, 368802), (1764, 362948), (1953, 327824), (2232, 286846), (2352, 272211), (2604, 245868), (2927, 218736), (3038, 210744), (3472, 184401), (3528, 181474), (3906, 163912), (4464, 143423), (4557, 140496), (5208, 122934), (5854, 109368), (6076, 105372), (7056, 90737), (7812, 81956), (8781, 72912), (9114, 70248), (10416, 61467), (11708, 54684), (12152, 52686), (13671, 46832), (15624, 40978), (17562, 36456), (18228, 35124), (20489, 31248), (23416, 27342), (24304, 26343)]