205517520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{563}}^1$

素因数の和:611

約数の個数: 240

約数和(自身を含む): 767897280

約数和(自身を除く): 562379760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 169, 180, 195, 208, 216, 234, 240, 260, 270, 312, 338, 351, 360, 390, 432, 468, 507, 520, 540, 563, 585, 624, 676, 702, 720, 780, 845, 936, 1014, 1040, 1080, 1126, 1170, 1352, 1404, 1521, 1560, 1689, 1690, 1755, 1872, 2028, 2160, 2252, 2340, 2535, 2704, 2808, 2815, 3042, 3120, 3378, 3380, 3510, 4056, 4504, 4563, 4680, 5067, 5070, 5616, 5630, 6084, 6756, 6760, 7020, 7319, 7605, 8112, 8445, 9008, 9126, 9360, 10134, 10140, 11260, 12168, 13512, 13520, 14040, 14638, 15201, 15210, 16890, 18252, 20268, 20280, 21957, 22520, 22815, 24336, 25335, 27024, 28080, 29276, 30402, 30420, 33780, 36504, 36595, 40536, 40560, 43914, 45040, 45630, 50670, 58552, 60804, 60840, 65871, 67560, 73008, 73190, 76005, 81072, 87828, 91260, 95147, 101340, 109785, 117104, 121608, 121680, 131742, 135120, 146380, 152010, 175656, 182520, 190294, 197613, 202680, 219570, 243216, 263484, 285441, 292760, 304020, 329355, 351312, 365040, 380588, 395226, 405360, 439140, 475735, 526968, 570882, 585520, 608040, 658710, 761176, 790452, 856323, 878280, 951470, 988065, 1053936, 1141764, 1216080, 1317420, 1427205, 1522352, 1580904, 1712646, 1756560, 1902940, 1976130, 2283528, 2568969, 2634840, 2854410, 3161808, 3425292, 3805880, 3952260, 4281615, 4567056, 5137938, 5269680, 5708820, 6850584, 7611760, 7904520, 8563230, 10275876, 11417640, 12844845, 13701168, 15809040, 17126460, 20551752, 22835280, 25689690, 34252920, 41103504, 51379380, 68505840, 102758760, 205517520]

約数ペア:

[(1, 205517520), (2, 102758760), (3, 68505840), (4, 51379380), (5, 41103504), (6, 34252920), (8, 25689690), (9, 22835280), (10, 20551752), (12, 17126460), (13, 15809040), (15, 13701168), (16, 12844845), (18, 11417640), (20, 10275876), (24, 8563230), (26, 7904520), (27, 7611760), (30, 6850584), (36, 5708820), (39, 5269680), (40, 5137938), (45, 4567056), (48, 4281615), (52, 3952260), (54, 3805880), (60, 3425292), (65, 3161808), (72, 2854410), (78, 2634840), (80, 2568969), (90, 2283528), (104, 1976130), (108, 1902940), (117, 1756560), (120, 1712646), (130, 1580904), (135, 1522352), (144, 1427205), (156, 1317420), (169, 1216080), (180, 1141764), (195, 1053936), (208, 988065), (216, 951470), (234, 878280), (240, 856323), (260, 790452), (270, 761176), (312, 658710), (338, 608040), (351, 585520), (360, 570882), (390, 526968), (432, 475735), (468, 439140), (507, 405360), (520, 395226), (540, 380588), (563, 365040), (585, 351312), (624, 329355), (676, 304020), (702, 292760), (720, 285441), (780, 263484), (845, 243216), (936, 219570), (1014, 202680), (1040, 197613), (1080, 190294), (1126, 182520), (1170, 175656), (1352, 152010), (1404, 146380), (1521, 135120), (1560, 131742), (1689, 121680), (1690, 121608), (1755, 117104), (1872, 109785), (2028, 101340), (2160, 95147), (2252, 91260), (2340, 87828), (2535, 81072), (2704, 76005), (2808, 73190), (2815, 73008), (3042, 67560), (3120, 65871), (3378, 60840), (3380, 60804), (3510, 58552), (4056, 50670), (4504, 45630), (4563, 45040), (4680, 43914), (5067, 40560), (5070, 40536), (5616, 36595), (5630, 36504), (6084, 33780), (6756, 30420), (6760, 30402), (7020, 29276), (7319, 28080), (7605, 27024), (8112, 25335), (8445, 24336), (9008, 22815), (9126, 22520), (9360, 21957), (10134, 20280), (10140, 20268), (11260, 18252), (12168, 16890), (13512, 15210), (13520, 15201), (14040, 14638)]