20181491640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{7691}}^1$

素因数の和:7942

約数の個数: 192

約数和(自身を含む): 67713291360

約数和(自身を除く): 47531799720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 37, 40, 45, 60, 72, 74, 90, 111, 120, 148, 180, 185, 197, 222, 296, 333, 360, 370, 394, 444, 555, 591, 666, 740, 788, 888, 985, 1110, 1182, 1332, 1480, 1576, 1665, 1773, 1970, 2220, 2364, 2664, 2955, 3330, 3546, 3940, 4440, 4728, 5910, 6660, 7092, 7289, 7691, 7880, 8865, 11820, 13320, 14184, 14578, 15382, 17730, 21867, 23073, 23640, 29156, 30764, 35460, 36445, 38455, 43734, 46146, 58312, 61528, 65601, 69219, 70920, 72890, 76910, 87468, 92292, 109335, 115365, 131202, 138438, 145780, 153820, 174936, 184584, 218670, 230730, 262404, 276876, 284567, 291560, 307640, 328005, 346095, 437340, 461460, 524808, 553752, 569134, 656010, 692190, 853701, 874680, 922920, 1138268, 1312020, 1384380, 1422835, 1515127, 1707402, 2276536, 2561103, 2624040, 2768760, 2845670, 3030254, 3414804, 4268505, 4545381, 5122206, 5691340, 6060508, 6829608, 7575635, 8537010, 9090762, 10244412, 11382680, 12121016, 12805515, 13636143, 15151270, 17074020, 18181524, 20488824, 22726905, 25611030, 27272286, 30302540, 34148040, 36363048, 45453810, 51222060, 54544572, 56059699, 60605080, 68180715, 90907620, 102444120, 109089144, 112119398, 136361430, 168179097, 181815240, 224238796, 272722860, 280298495, 336358194, 448477592, 504537291, 545445720, 560596990, 672716388, 840895485, 1009074582, 1121193980, 1345432776, 1681790970, 2018149164, 2242387960, 2522686455, 3363581940, 4036298328, 5045372910, 6727163880, 10090745820, 20181491640]

約数ペア:

[(1, 20181491640), (2, 10090745820), (3, 6727163880), (4, 5045372910), (5, 4036298328), (6, 3363581940), (8, 2522686455), (9, 2242387960), (10, 2018149164), (12, 1681790970), (15, 1345432776), (18, 1121193980), (20, 1009074582), (24, 840895485), (30, 672716388), (36, 560596990), (37, 545445720), (40, 504537291), (45, 448477592), (60, 336358194), (72, 280298495), (74, 272722860), (90, 224238796), (111, 181815240), (120, 168179097), (148, 136361430), (180, 112119398), (185, 109089144), (197, 102444120), (222, 90907620), (296, 68180715), (333, 60605080), (360, 56059699), (370, 54544572), (394, 51222060), (444, 45453810), (555, 36363048), (591, 34148040), (666, 30302540), (740, 27272286), (788, 25611030), (888, 22726905), (985, 20488824), (1110, 18181524), (1182, 17074020), (1332, 15151270), (1480, 13636143), (1576, 12805515), (1665, 12121016), (1773, 11382680), (1970, 10244412), (2220, 9090762), (2364, 8537010), (2664, 7575635), (2955, 6829608), (3330, 6060508), (3546, 5691340), (3940, 5122206), (4440, 4545381), (4728, 4268505), (5910, 3414804), (6660, 3030254), (7092, 2845670), (7289, 2768760), (7691, 2624040), (7880, 2561103), (8865, 2276536), (11820, 1707402), (13320, 1515127), (14184, 1422835), (14578, 1384380), (15382, 1312020), (17730, 1138268), (21867, 922920), (23073, 874680), (23640, 853701), (29156, 692190), (30764, 656010), (35460, 569134), (36445, 553752), (38455, 524808), (43734, 461460), (46146, 437340), (58312, 346095), (61528, 328005), (65601, 307640), (69219, 291560), (70920, 284567), (72890, 276876), (76910, 262404), (87468, 230730), (92292, 218670), (109335, 184584), (115365, 174936), (131202, 153820), (138438, 145780)]