20208240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1$

素因数の和:176

約数の個数: 240

約数和(自身を含む): 77995008

約数和(自身を除く): 57786768

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 18, 20, 24, 26, 30, 34, 36, 39, 40, 45, 48, 51, 52, 60, 65, 68, 72, 78, 80, 85, 90, 102, 104, 117, 120, 127, 130, 136, 144, 153, 156, 170, 180, 195, 204, 208, 221, 234, 240, 254, 255, 260, 272, 306, 312, 340, 360, 381, 390, 408, 442, 468, 508, 510, 520, 585, 612, 624, 635, 663, 680, 720, 762, 765, 780, 816, 884, 936, 1016, 1020, 1040, 1105, 1143, 1170, 1224, 1270, 1326, 1360, 1524, 1530, 1560, 1651, 1768, 1872, 1905, 1989, 2032, 2040, 2159, 2210, 2286, 2340, 2448, 2540, 2652, 3048, 3060, 3120, 3302, 3315, 3536, 3810, 3978, 4080, 4318, 4420, 4572, 4680, 4953, 5080, 5304, 5715, 6096, 6120, 6477, 6604, 6630, 7620, 7956, 8255, 8636, 8840, 9144, 9360, 9906, 9945, 10160, 10608, 10795, 11430, 12240, 12954, 13208, 13260, 14859, 15240, 15912, 16510, 17272, 17680, 18288, 19431, 19812, 19890, 21590, 22860, 24765, 25908, 26416, 26520, 28067, 29718, 30480, 31824, 32385, 33020, 34544, 38862, 39624, 39780, 43180, 45720, 49530, 51816, 53040, 56134, 59436, 64770, 66040, 74295, 77724, 79248, 79560, 84201, 86360, 91440, 97155, 99060, 103632, 112268, 118872, 129540, 132080, 140335, 148590, 155448, 159120, 168402, 172720, 194310, 198120, 224536, 237744, 252603, 259080, 280670, 297180, 310896, 336804, 388620, 396240, 421005, 449072, 505206, 518160, 561340, 594360, 673608, 777240, 842010, 1010412, 1122680, 1188720, 1263015, 1347216, 1554480, 1684020, 2020824, 2245360, 2526030, 3368040, 4041648, 5052060, 6736080, 10104120, 20208240]

約数ペア:

[(1, 20208240), (2, 10104120), (3, 6736080), (4, 5052060), (5, 4041648), (6, 3368040), (8, 2526030), (9, 2245360), (10, 2020824), (12, 1684020), (13, 1554480), (15, 1347216), (16, 1263015), (17, 1188720), (18, 1122680), (20, 1010412), (24, 842010), (26, 777240), (30, 673608), (34, 594360), (36, 561340), (39, 518160), (40, 505206), (45, 449072), (48, 421005), (51, 396240), (52, 388620), (60, 336804), (65, 310896), (68, 297180), (72, 280670), (78, 259080), (80, 252603), (85, 237744), (90, 224536), (102, 198120), (104, 194310), (117, 172720), (120, 168402), (127, 159120), (130, 155448), (136, 148590), (144, 140335), (153, 132080), (156, 129540), (170, 118872), (180, 112268), (195, 103632), (204, 99060), (208, 97155), (221, 91440), (234, 86360), (240, 84201), (254, 79560), (255, 79248), (260, 77724), (272, 74295), (306, 66040), (312, 64770), (340, 59436), (360, 56134), (381, 53040), (390, 51816), (408, 49530), (442, 45720), (468, 43180), (508, 39780), (510, 39624), (520, 38862), (585, 34544), (612, 33020), (624, 32385), (635, 31824), (663, 30480), (680, 29718), (720, 28067), (762, 26520), (765, 26416), (780, 25908), (816, 24765), (884, 22860), (936, 21590), (1016, 19890), (1020, 19812), (1040, 19431), (1105, 18288), (1143, 17680), (1170, 17272), (1224, 16510), (1270, 15912), (1326, 15240), (1360, 14859), (1524, 13260), (1530, 13208), (1560, 12954), (1651, 12240), (1768, 11430), (1872, 10795), (1905, 10608), (1989, 10160), (2032, 9945), (2040, 9906), (2159, 9360), (2210, 9144), (2286, 8840), (2340, 8636), (2448, 8255), (2540, 7956), (2652, 7620), (3048, 6630), (3060, 6604), (3120, 6477), (3302, 6120), (3315, 6096), (3536, 5715), (3810, 5304), (3978, 5080), (4080, 4953), (4318, 4680), (4420, 4572)]