81295800

素因数分解:

$2^3\times 3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:222

約数の個数: 192

約数和(自身を含む): 271054080

約数和(自身を除く): 189758280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 25, 30, 40, 43, 46, 50, 60, 69, 75, 86, 92, 100, 115, 120, 129, 137, 138, 150, 172, 184, 200, 215, 230, 258, 274, 276, 300, 344, 345, 411, 430, 460, 516, 548, 552, 575, 600, 645, 685, 690, 822, 860, 920, 989, 1032, 1075, 1096, 1150, 1290, 1370, 1380, 1644, 1720, 1725, 1978, 2055, 2150, 2300, 2580, 2740, 2760, 2967, 3151, 3225, 3288, 3425, 3450, 3956, 4110, 4300, 4600, 4945, 5160, 5480, 5891, 5934, 6302, 6450, 6850, 6900, 7912, 8220, 8600, 9453, 9890, 10275, 11782, 11868, 12604, 12900, 13700, 13800, 14835, 15755, 16440, 17673, 18906, 19780, 20550, 23564, 23736, 24725, 25208, 25800, 27400, 29455, 29670, 31510, 35346, 37812, 39560, 41100, 47128, 47265, 49450, 58910, 59340, 63020, 70692, 74175, 75624, 78775, 82200, 88365, 94530, 98900, 117820, 118680, 126040, 135493, 141384, 147275, 148350, 157550, 176730, 189060, 197800, 235640, 236325, 270986, 294550, 296700, 315100, 353460, 378120, 406479, 441825, 472650, 541972, 589100, 593400, 630200, 677465, 706920, 812958, 883650, 945300, 1083944, 1178200, 1354930, 1625916, 1767300, 1890600, 2032395, 2709860, 3251832, 3387325, 3534600, 4064790, 5419720, 6774650, 8129580, 10161975, 13549300, 16259160, 20323950, 27098600, 40647900, 81295800]

約数ペア:

[(1, 81295800), (2, 40647900), (3, 27098600), (4, 20323950), (5, 16259160), (6, 13549300), (8, 10161975), (10, 8129580), (12, 6774650), (15, 5419720), (20, 4064790), (23, 3534600), (24, 3387325), (25, 3251832), (30, 2709860), (40, 2032395), (43, 1890600), (46, 1767300), (50, 1625916), (60, 1354930), (69, 1178200), (75, 1083944), (86, 945300), (92, 883650), (100, 812958), (115, 706920), (120, 677465), (129, 630200), (137, 593400), (138, 589100), (150, 541972), (172, 472650), (184, 441825), (200, 406479), (215, 378120), (230, 353460), (258, 315100), (274, 296700), (276, 294550), (300, 270986), (344, 236325), (345, 235640), (411, 197800), (430, 189060), (460, 176730), (516, 157550), (548, 148350), (552, 147275), (575, 141384), (600, 135493), (645, 126040), (685, 118680), (690, 117820), (822, 98900), (860, 94530), (920, 88365), (989, 82200), (1032, 78775), (1075, 75624), (1096, 74175), (1150, 70692), (1290, 63020), (1370, 59340), (1380, 58910), (1644, 49450), (1720, 47265), (1725, 47128), (1978, 41100), (2055, 39560), (2150, 37812), (2300, 35346), (2580, 31510), (2740, 29670), (2760, 29455), (2967, 27400), (3151, 25800), (3225, 25208), (3288, 24725), (3425, 23736), (3450, 23564), (3956, 20550), (4110, 19780), (4300, 18906), (4600, 17673), (4945, 16440), (5160, 15755), (5480, 14835), (5891, 13800), (5934, 13700), (6302, 12900), (6450, 12604), (6850, 11868), (6900, 11782), (7912, 10275), (8220, 9890), (8600, 9453)]