820181081520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{26491637}}^1$

素因数の和:26491699

約数の個数: 120

約数和(自身を含む): 2818498350096

約数和(自身を除く): 1998317268576

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 129, 144, 172, 180, 215, 240, 258, 344, 360, 387, 430, 516, 645, 688, 720, 774, 860, 1032, 1290, 1548, 1720, 1935, 2064, 2580, 3096, 3440, 3870, 5160, 6192, 7740, 10320, 15480, 30960, 26491637, 52983274, 79474911, 105966548, 132458185, 158949822, 211933096, 238424733, 264916370, 317899644, 397374555, 423866192, 476849466, 529832740, 635799288, 794749110, 953698932, 1059665480, 1139140391, 1192123665, 1271598576, 1589498220, 1907397864, 2119330960, 2278280782, 2384247330, 3178996440, 3417421173, 3814795728, 4556561564, 4768494660, 5695701955, 6357992880, 6834842346, 9113123128, 9536989320, 10252263519, 11391403910, 13669684692, 17087105865, 18226246256, 19073978640, 20504527038, 22782807820, 27339369384, 34174211730, 41009054076, 45565615640, 51261317595, 54678738768, 68348423460, 82018108152, 91131231280, 102522635190, 136696846920, 164036216304, 205045270380, 273393693840, 410090540760, 820181081520]

約数ペア:

[(1, 820181081520), (2, 410090540760), (3, 273393693840), (4, 205045270380), (5, 164036216304), (6, 136696846920), (8, 102522635190), (9, 91131231280), (10, 82018108152), (12, 68348423460), (15, 54678738768), (16, 51261317595), (18, 45565615640), (20, 41009054076), (24, 34174211730), (30, 27339369384), (36, 22782807820), (40, 20504527038), (43, 19073978640), (45, 18226246256), (48, 17087105865), (60, 13669684692), (72, 11391403910), (80, 10252263519), (86, 9536989320), (90, 9113123128), (120, 6834842346), (129, 6357992880), (144, 5695701955), (172, 4768494660), (180, 4556561564), (215, 3814795728), (240, 3417421173), (258, 3178996440), (344, 2384247330), (360, 2278280782), (387, 2119330960), (430, 1907397864), (516, 1589498220), (645, 1271598576), (688, 1192123665), (720, 1139140391), (774, 1059665480), (860, 953698932), (1032, 794749110), (1290, 635799288), (1548, 529832740), (1720, 476849466), (1935, 423866192), (2064, 397374555), (2580, 317899644), (3096, 264916370), (3440, 238424733), (3870, 211933096), (5160, 158949822), (6192, 132458185), (7740, 105966548), (10320, 79474911), (15480, 52983274), (30960, 26491637)]