20157484800

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61757}}^1$

素因数の和:61803

約数の個数: 216

約数和(自身を含む): 70438210416

約数和(自身を除く): 50280725616

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 32, 34, 40, 48, 50, 51, 60, 64, 68, 75, 80, 85, 96, 100, 102, 120, 128, 136, 150, 160, 170, 192, 200, 204, 240, 255, 256, 272, 300, 320, 340, 384, 400, 408, 425, 480, 510, 544, 600, 640, 680, 768, 800, 816, 850, 960, 1020, 1088, 1200, 1275, 1280, 1360, 1600, 1632, 1700, 1920, 2040, 2176, 2400, 2550, 2720, 3200, 3264, 3400, 3840, 4080, 4352, 4800, 5100, 5440, 6400, 6528, 6800, 8160, 9600, 10200, 10880, 13056, 13600, 16320, 19200, 20400, 21760, 27200, 32640, 40800, 54400, 61757, 65280, 81600, 108800, 123514, 163200, 185271, 247028, 308785, 326400, 370542, 494056, 617570, 741084, 926355, 988112, 1049869, 1235140, 1482168, 1543925, 1852710, 1976224, 2099738, 2470280, 2964336, 3087850, 3149607, 3705420, 3952448, 4199476, 4631775, 4940560, 5249345, 5928672, 6175700, 6299214, 7410840, 7904896, 8398952, 9263550, 9881120, 10498690, 11857344, 12351400, 12598428, 14821680, 15748035, 15809792, 16797904, 18527100, 19762240, 20997380, 23714688, 24702800, 25196856, 26246725, 29643360, 31496070, 33595808, 37054200, 39524480, 41994760, 47429376, 49405600, 50393712, 52493450, 59286720, 62992140, 67191616, 74108400, 78740175, 79048960, 83989520, 98811200, 100787424, 104986900, 118573440, 125984280, 134383232, 148216800, 157480350, 167979040, 197622400, 201574848, 209973800, 237146880, 251968560, 268766464, 296433600, 314960700, 335958080, 395244800, 403149696, 419947600, 503937120, 592867200, 629921400, 671916160, 806299392, 839895200, 1007874240, 1185734400, 1259842800, 1343832320, 1679790400, 2015748480, 2519685600, 3359580800, 4031496960, 5039371200, 6719161600, 10078742400, 20157484800]

約数ペア:

[(1, 20157484800), (2, 10078742400), (3, 6719161600), (4, 5039371200), (5, 4031496960), (6, 3359580800), (8, 2519685600), (10, 2015748480), (12, 1679790400), (15, 1343832320), (16, 1259842800), (17, 1185734400), (20, 1007874240), (24, 839895200), (25, 806299392), (30, 671916160), (32, 629921400), (34, 592867200), (40, 503937120), (48, 419947600), (50, 403149696), (51, 395244800), (60, 335958080), (64, 314960700), (68, 296433600), (75, 268766464), (80, 251968560), (85, 237146880), (96, 209973800), (100, 201574848), (102, 197622400), (120, 167979040), (128, 157480350), (136, 148216800), (150, 134383232), (160, 125984280), (170, 118573440), (192, 104986900), (200, 100787424), (204, 98811200), (240, 83989520), (255, 79048960), (256, 78740175), (272, 74108400), (300, 67191616), (320, 62992140), (340, 59286720), (384, 52493450), (400, 50393712), (408, 49405600), (425, 47429376), (480, 41994760), (510, 39524480), (544, 37054200), (600, 33595808), (640, 31496070), (680, 29643360), (768, 26246725), (800, 25196856), (816, 24702800), (850, 23714688), (960, 20997380), (1020, 19762240), (1088, 18527100), (1200, 16797904), (1275, 15809792), (1280, 15748035), (1360, 14821680), (1600, 12598428), (1632, 12351400), (1700, 11857344), (1920, 10498690), (2040, 9881120), (2176, 9263550), (2400, 8398952), (2550, 7904896), (2720, 7410840), (3200, 6299214), (3264, 6175700), (3400, 5928672), (3840, 5249345), (4080, 4940560), (4352, 4631775), (4800, 4199476), (5100, 3952448), (5440, 3705420), (6400, 3149607), (6528, 3087850), (6800, 2964336), (8160, 2470280), (9600, 2099738), (10200, 1976224), (10880, 1852710), (13056, 1543925), (13600, 1482168), (16320, 1235140), (19200, 1049869), (20400, 988112), (21760, 926355), (27200, 741084), (32640, 617570), (40800, 494056), (54400, 370542), (61757, 326400), (65280, 308785), (81600, 247028), (108800, 185271), (123514, 163200)]