661384080

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{467}}^1$

素因数の和:774

約数の個数: 240

約数和(自身を含む): 2552943744

約数和(自身を除く): 1891559664

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 281, 315, 336, 360, 420, 467, 504, 560, 562, 630, 720, 840, 843, 934, 1008, 1124, 1260, 1401, 1405, 1680, 1686, 1868, 1967, 2248, 2335, 2520, 2529, 2802, 2810, 3269, 3372, 3736, 3934, 4203, 4215, 4496, 4670, 5040, 5058, 5604, 5620, 5901, 6538, 6744, 7005, 7472, 7868, 8406, 8430, 9340, 9807, 9835, 10116, 11208, 11240, 11802, 12645, 13076, 13488, 14010, 15736, 16345, 16812, 16860, 17703, 18680, 19614, 19670, 20232, 21015, 22416, 22480, 23604, 25290, 26152, 28020, 29421, 29505, 31472, 32690, 33624, 33720, 35406, 37360, 39228, 39340, 40464, 42030, 47208, 49035, 50580, 52304, 56040, 58842, 59010, 65380, 67248, 67440, 70812, 78456, 78680, 84060, 88515, 94416, 98070, 101160, 112080, 117684, 118020, 130760, 131227, 141624, 147105, 156912, 157360, 168120, 177030, 196140, 202320, 235368, 236040, 261520, 262454, 283248, 294210, 336240, 354060, 392280, 393681, 470736, 472080, 524908, 588420, 656135, 708120, 784560, 787362, 918589, 1049816, 1176840, 1181043, 1312270, 1416240, 1574724, 1837178, 1968405, 2099632, 2353680, 2362086, 2624540, 2755767, 3149448, 3674356, 3936810, 4592945, 4724172, 5249080, 5511534, 5905215, 6298896, 7348712, 7873620, 8267301, 9185890, 9448344, 10498160, 11023068, 11810430, 13778835, 14697424, 15747240, 16534602, 18371780, 18896688, 22046136, 23620860, 27557670, 31494480, 33069204, 36743560, 41336505, 44092272, 47241720, 55115340, 66138408, 73487120, 82673010, 94483440, 110230680, 132276816, 165346020, 220461360, 330692040, 661384080]

約数ペア:

[(1, 661384080), (2, 330692040), (3, 220461360), (4, 165346020), (5, 132276816), (6, 110230680), (7, 94483440), (8, 82673010), (9, 73487120), (10, 66138408), (12, 55115340), (14, 47241720), (15, 44092272), (16, 41336505), (18, 36743560), (20, 33069204), (21, 31494480), (24, 27557670), (28, 23620860), (30, 22046136), (35, 18896688), (36, 18371780), (40, 16534602), (42, 15747240), (45, 14697424), (48, 13778835), (56, 11810430), (60, 11023068), (63, 10498160), (70, 9448344), (72, 9185890), (80, 8267301), (84, 7873620), (90, 7348712), (105, 6298896), (112, 5905215), (120, 5511534), (126, 5249080), (140, 4724172), (144, 4592945), (168, 3936810), (180, 3674356), (210, 3149448), (240, 2755767), (252, 2624540), (280, 2362086), (281, 2353680), (315, 2099632), (336, 1968405), (360, 1837178), (420, 1574724), (467, 1416240), (504, 1312270), (560, 1181043), (562, 1176840), (630, 1049816), (720, 918589), (840, 787362), (843, 784560), (934, 708120), (1008, 656135), (1124, 588420), (1260, 524908), (1401, 472080), (1405, 470736), (1680, 393681), (1686, 392280), (1868, 354060), (1967, 336240), (2248, 294210), (2335, 283248), (2520, 262454), (2529, 261520), (2802, 236040), (2810, 235368), (3269, 202320), (3372, 196140), (3736, 177030), (3934, 168120), (4203, 157360), (4215, 156912), (4496, 147105), (4670, 141624), (5040, 131227), (5058, 130760), (5604, 118020), (5620, 117684), (5901, 112080), (6538, 101160), (6744, 98070), (7005, 94416), (7472, 88515), (7868, 84060), (8406, 78680), (8430, 78456), (9340, 70812), (9807, 67440), (9835, 67248), (10116, 65380), (11208, 59010), (11240, 58842), (11802, 56040), (12645, 52304), (13076, 50580), (13488, 49035), (14010, 47208), (15736, 42030), (16345, 40464), (16812, 39340), (16860, 39228), (17703, 37360), (18680, 35406), (19614, 33720), (19670, 33624), (20232, 32690), (21015, 31472), (22416, 29505), (22480, 29421), (23604, 28020), (25290, 26152)]