20216856960

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{68821}}^1$

素因数の和:68866

約数の個数: 256

約数和(自身を含む): 75814315200

約数和(自身を除く): 55597458240

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 85, 90, 96, 102, 108, 120, 128, 135, 136, 144, 153, 160, 170, 180, 192, 204, 216, 240, 255, 270, 272, 288, 306, 320, 340, 360, 384, 408, 432, 459, 480, 510, 540, 544, 576, 612, 640, 680, 720, 765, 816, 864, 918, 960, 1020, 1080, 1088, 1152, 1224, 1360, 1440, 1530, 1632, 1728, 1836, 1920, 2040, 2160, 2176, 2295, 2448, 2720, 2880, 3060, 3264, 3456, 3672, 4080, 4320, 4590, 4896, 5440, 5760, 6120, 6528, 7344, 8160, 8640, 9180, 9792, 10880, 12240, 14688, 16320, 17280, 18360, 19584, 24480, 29376, 32640, 36720, 48960, 58752, 68821, 73440, 97920, 137642, 146880, 206463, 275284, 293760, 344105, 412926, 550568, 619389, 688210, 825852, 1032315, 1101136, 1169957, 1238778, 1376420, 1651704, 1858167, 2064630, 2202272, 2339914, 2477556, 2752840, 3096945, 3303408, 3509871, 3716334, 4129260, 4404544, 4679828, 4955112, 5505680, 5849785, 6193890, 6606816, 7019742, 7432668, 8258520, 8809088, 9290835, 9359656, 9910224, 10529613, 11011360, 11699570, 12387780, 13213632, 14039484, 14865336, 16517040, 17549355, 18581670, 18719312, 19820448, 21059226, 22022720, 23399140, 24775560, 26427264, 28078968, 29730672, 31588839, 33034080, 35098710, 37163340, 37438624, 39640896, 42118452, 44045440, 46798280, 49551120, 52648065, 56157936, 59461344, 63177678, 66068160, 70197420, 74326680, 74877248, 79281792, 84236904, 93596560, 99102240, 105296130, 112315872, 118922688, 126355356, 132136320, 140394840, 148653360, 149754496, 157944195, 168473808, 187193120, 198204480, 210592260, 224631744, 237845376, 252710712, 280789680, 297306720, 315888390, 336947616, 374386240, 396408960, 421184520, 449263488, 505421424, 561579360, 594613440, 631776780, 673895232, 748772480, 842369040, 1010842848, 1123158720, 1189226880, 1263553560, 1347790464, 1684738080, 2021685696, 2246317440, 2527107120, 3369476160, 4043371392, 5054214240, 6738952320, 10108428480, 20216856960]

約数ペア:

[(1, 20216856960), (2, 10108428480), (3, 6738952320), (4, 5054214240), (5, 4043371392), (6, 3369476160), (8, 2527107120), (9, 2246317440), (10, 2021685696), (12, 1684738080), (15, 1347790464), (16, 1263553560), (17, 1189226880), (18, 1123158720), (20, 1010842848), (24, 842369040), (27, 748772480), (30, 673895232), (32, 631776780), (34, 594613440), (36, 561579360), (40, 505421424), (45, 449263488), (48, 421184520), (51, 396408960), (54, 374386240), (60, 336947616), (64, 315888390), (68, 297306720), (72, 280789680), (80, 252710712), (85, 237845376), (90, 224631744), (96, 210592260), (102, 198204480), (108, 187193120), (120, 168473808), (128, 157944195), (135, 149754496), (136, 148653360), (144, 140394840), (153, 132136320), (160, 126355356), (170, 118922688), (180, 112315872), (192, 105296130), (204, 99102240), (216, 93596560), (240, 84236904), (255, 79281792), (270, 74877248), (272, 74326680), (288, 70197420), (306, 66068160), (320, 63177678), (340, 59461344), (360, 56157936), (384, 52648065), (408, 49551120), (432, 46798280), (459, 44045440), (480, 42118452), (510, 39640896), (540, 37438624), (544, 37163340), (576, 35098710), (612, 33034080), (640, 31588839), (680, 29730672), (720, 28078968), (765, 26427264), (816, 24775560), (864, 23399140), (918, 22022720), (960, 21059226), (1020, 19820448), (1080, 18719312), (1088, 18581670), (1152, 17549355), (1224, 16517040), (1360, 14865336), (1440, 14039484), (1530, 13213632), (1632, 12387780), (1728, 11699570), (1836, 11011360), (1920, 10529613), (2040, 9910224), (2160, 9359656), (2176, 9290835), (2295, 8809088), (2448, 8258520), (2720, 7432668), (2880, 7019742), (3060, 6606816), (3264, 6193890), (3456, 5849785), (3672, 5505680), (4080, 4955112), (4320, 4679828), (4590, 4404544), (4896, 4129260), (5440, 3716334), (5760, 3509871), (6120, 3303408), (6528, 3096945), (7344, 2752840), (8160, 2477556), (8640, 2339914), (9180, 2202272), (9792, 2064630), (10880, 1858167), (12240, 1651704), (14688, 1376420), (16320, 1238778), (17280, 1169957), (18360, 1101136), (19584, 1032315), (24480, 825852), (29376, 688210), (32640, 619389), (36720, 550568), (48960, 412926), (58752, 344105), (68821, 293760), (73440, 275284), (97920, 206463), (137642, 146880)]