221405520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{281}}^1$

素因数の和:378

約数の個数: 240

約数和(自身を含む): 813215808

約数和(自身を除く): 591810288

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 67, 70, 80, 84, 98, 105, 112, 120, 134, 140, 147, 168, 196, 201, 210, 240, 245, 268, 280, 281, 294, 335, 336, 392, 402, 420, 469, 490, 536, 560, 562, 588, 670, 735, 784, 804, 840, 843, 938, 980, 1005, 1072, 1124, 1176, 1340, 1405, 1407, 1470, 1608, 1680, 1686, 1876, 1960, 1967, 2010, 2248, 2345, 2352, 2680, 2810, 2814, 2940, 3216, 3283, 3372, 3752, 3920, 3934, 4020, 4215, 4496, 4690, 5360, 5620, 5628, 5880, 5901, 6566, 6744, 7035, 7504, 7868, 8040, 8430, 9380, 9835, 9849, 11240, 11256, 11760, 11802, 13132, 13488, 13769, 14070, 15736, 16080, 16415, 16860, 18760, 18827, 19670, 19698, 22480, 22512, 23604, 26264, 27538, 28140, 29505, 31472, 32830, 33720, 37520, 37654, 39340, 39396, 41307, 47208, 49245, 52528, 55076, 56280, 56481, 59010, 65660, 67440, 68845, 75308, 78680, 78792, 82614, 94135, 94416, 98490, 110152, 112560, 112962, 118020, 131320, 131789, 137690, 150616, 157360, 157584, 165228, 188270, 196980, 206535, 220304, 225924, 236040, 262640, 263578, 275380, 282405, 301232, 330456, 376540, 393960, 395367, 413070, 451848, 472080, 527156, 550760, 564810, 658945, 660912, 753080, 787920, 790734, 826140, 903696, 922523, 1054312, 1101520, 1129620, 1317890, 1506160, 1581468, 1652280, 1845046, 1976835, 2108624, 2259240, 2635780, 2767569, 3162936, 3304560, 3690092, 3953670, 4518480, 4612615, 5271560, 5535138, 6325872, 7380184, 7907340, 9225230, 10543120, 11070276, 13837845, 14760368, 15814680, 18450460, 22140552, 27675690, 31629360, 36900920, 44281104, 55351380, 73801840, 110702760, 221405520]

約数ペア:

[(1, 221405520), (2, 110702760), (3, 73801840), (4, 55351380), (5, 44281104), (6, 36900920), (7, 31629360), (8, 27675690), (10, 22140552), (12, 18450460), (14, 15814680), (15, 14760368), (16, 13837845), (20, 11070276), (21, 10543120), (24, 9225230), (28, 7907340), (30, 7380184), (35, 6325872), (40, 5535138), (42, 5271560), (48, 4612615), (49, 4518480), (56, 3953670), (60, 3690092), (67, 3304560), (70, 3162936), (80, 2767569), (84, 2635780), (98, 2259240), (105, 2108624), (112, 1976835), (120, 1845046), (134, 1652280), (140, 1581468), (147, 1506160), (168, 1317890), (196, 1129620), (201, 1101520), (210, 1054312), (240, 922523), (245, 903696), (268, 826140), (280, 790734), (281, 787920), (294, 753080), (335, 660912), (336, 658945), (392, 564810), (402, 550760), (420, 527156), (469, 472080), (490, 451848), (536, 413070), (560, 395367), (562, 393960), (588, 376540), (670, 330456), (735, 301232), (784, 282405), (804, 275380), (840, 263578), (843, 262640), (938, 236040), (980, 225924), (1005, 220304), (1072, 206535), (1124, 196980), (1176, 188270), (1340, 165228), (1405, 157584), (1407, 157360), (1470, 150616), (1608, 137690), (1680, 131789), (1686, 131320), (1876, 118020), (1960, 112962), (1967, 112560), (2010, 110152), (2248, 98490), (2345, 94416), (2352, 94135), (2680, 82614), (2810, 78792), (2814, 78680), (2940, 75308), (3216, 68845), (3283, 67440), (3372, 65660), (3752, 59010), (3920, 56481), (3934, 56280), (4020, 55076), (4215, 52528), (4496, 49245), (4690, 47208), (5360, 41307), (5620, 39396), (5628, 39340), (5880, 37654), (5901, 37520), (6566, 33720), (6744, 32830), (7035, 31472), (7504, 29505), (7868, 28140), (8040, 27538), (8430, 26264), (9380, 23604), (9835, 22512), (9849, 22480), (11240, 19698), (11256, 19670), (11760, 18827), (11802, 18760), (13132, 16860), (13488, 16415), (13769, 16080), (14070, 15736)]