20918626560

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139681}}^1$

素因数の和:139721

約数の個数: 216

約数和(自身を含む): 77944232184

約数和(自身を除く): 57025605624

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 256, 260, 288, 312, 320, 360, 384, 390, 416, 468, 480, 520, 576, 585, 624, 640, 720, 768, 780, 832, 936, 960, 1040, 1152, 1170, 1248, 1280, 1440, 1560, 1664, 1872, 1920, 2080, 2304, 2340, 2496, 2880, 3120, 3328, 3744, 3840, 4160, 4680, 4992, 5760, 6240, 7488, 8320, 9360, 9984, 11520, 12480, 14976, 16640, 18720, 24960, 29952, 37440, 49920, 74880, 139681, 149760, 279362, 419043, 558724, 698405, 838086, 1117448, 1257129, 1396810, 1676172, 1815853, 2095215, 2234896, 2514258, 2793620, 3352344, 3631706, 4190430, 4469792, 5028516, 5447559, 5587240, 6285645, 6704688, 7263412, 8380860, 8939584, 9079265, 10057032, 10895118, 11174480, 12571290, 13409376, 14526824, 16342677, 16761720, 17879168, 18158530, 20114064, 21790236, 22348960, 25142580, 26818752, 27237795, 29053648, 32685354, 33523440, 35758336, 36317060, 40228128, 43580472, 44697920, 50285160, 53637504, 54475590, 58107296, 65370708, 67046880, 72634120, 80456256, 81713385, 87160944, 89395840, 100570320, 107275008, 108951180, 116214592, 130741416, 134093760, 145268240, 160912512, 163426770, 174321888, 178791680, 201140640, 217902360, 232429184, 261482832, 268187520, 290536480, 321825024, 326853540, 348643776, 402281280, 435804720, 464858368, 522965664, 536375040, 581072960, 653707080, 697287552, 804562560, 871609440, 1045931328, 1162145920, 1307414160, 1394575104, 1609125120, 1743218880, 2091862656, 2324291840, 2614828320, 3486437760, 4183725312, 5229656640, 6972875520, 10459313280, 20918626560]

約数ペア:

[(1, 20918626560), (2, 10459313280), (3, 6972875520), (4, 5229656640), (5, 4183725312), (6, 3486437760), (8, 2614828320), (9, 2324291840), (10, 2091862656), (12, 1743218880), (13, 1609125120), (15, 1394575104), (16, 1307414160), (18, 1162145920), (20, 1045931328), (24, 871609440), (26, 804562560), (30, 697287552), (32, 653707080), (36, 581072960), (39, 536375040), (40, 522965664), (45, 464858368), (48, 435804720), (52, 402281280), (60, 348643776), (64, 326853540), (65, 321825024), (72, 290536480), (78, 268187520), (80, 261482832), (90, 232429184), (96, 217902360), (104, 201140640), (117, 178791680), (120, 174321888), (128, 163426770), (130, 160912512), (144, 145268240), (156, 134093760), (160, 130741416), (180, 116214592), (192, 108951180), (195, 107275008), (208, 100570320), (234, 89395840), (240, 87160944), (256, 81713385), (260, 80456256), (288, 72634120), (312, 67046880), (320, 65370708), (360, 58107296), (384, 54475590), (390, 53637504), (416, 50285160), (468, 44697920), (480, 43580472), (520, 40228128), (576, 36317060), (585, 35758336), (624, 33523440), (640, 32685354), (720, 29053648), (768, 27237795), (780, 26818752), (832, 25142580), (936, 22348960), (960, 21790236), (1040, 20114064), (1152, 18158530), (1170, 17879168), (1248, 16761720), (1280, 16342677), (1440, 14526824), (1560, 13409376), (1664, 12571290), (1872, 11174480), (1920, 10895118), (2080, 10057032), (2304, 9079265), (2340, 8939584), (2496, 8380860), (2880, 7263412), (3120, 6704688), (3328, 6285645), (3744, 5587240), (3840, 5447559), (4160, 5028516), (4680, 4469792), (4992, 4190430), (5760, 3631706), (6240, 3352344), (7488, 2793620), (8320, 2514258), (9360, 2234896), (9984, 2095215), (11520, 1815853), (12480, 1676172), (14976, 1396810), (16640, 1257129), (18720, 1117448), (24960, 838086), (29952, 698405), (37440, 558724), (49920, 419043), (74880, 279362), (139681, 149760)]