217864920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:386

約数の個数: 256

約数和(自身を含む): 818657280

約数和(自身を除く): 600792360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 71, 78, 84, 91, 104, 105, 120, 130, 140, 142, 156, 168, 182, 195, 210, 213, 260, 273, 280, 281, 284, 312, 355, 364, 390, 420, 426, 455, 497, 520, 546, 562, 568, 710, 728, 780, 840, 843, 852, 910, 923, 994, 1065, 1092, 1124, 1365, 1405, 1420, 1491, 1560, 1686, 1704, 1820, 1846, 1967, 1988, 2130, 2184, 2248, 2485, 2730, 2769, 2810, 2840, 2982, 3372, 3640, 3653, 3692, 3934, 3976, 4215, 4260, 4615, 4970, 5460, 5538, 5620, 5901, 5964, 6461, 6744, 7306, 7384, 7455, 7868, 8430, 8520, 9230, 9835, 9940, 10920, 10959, 11076, 11240, 11802, 11928, 12922, 13845, 14612, 14910, 15736, 16860, 18265, 18460, 19383, 19670, 19880, 19951, 21918, 22152, 23604, 25571, 25844, 27690, 29224, 29505, 29820, 32305, 33720, 36530, 36920, 38766, 39340, 39902, 43836, 47208, 51142, 51688, 54795, 55380, 59010, 59640, 59853, 64610, 73060, 76713, 77532, 78680, 79804, 87672, 96915, 99755, 102284, 109590, 110760, 118020, 119706, 127855, 129220, 139657, 146120, 153426, 155064, 159608, 193830, 199510, 204568, 219180, 236040, 239412, 255710, 258440, 259363, 279314, 299265, 306852, 383565, 387660, 399020, 418971, 438360, 478824, 511420, 518726, 558628, 598530, 613704, 698285, 767130, 775320, 778089, 798040, 837942, 1022840, 1037452, 1117256, 1197060, 1296815, 1396570, 1534260, 1556178, 1675884, 1815541, 2074904, 2094855, 2394120, 2593630, 2793140, 3068520, 3112356, 3351768, 3631082, 3890445, 4189710, 5187260, 5446623, 5586280, 6224712, 7262164, 7780890, 8379420, 9077705, 10374520, 10893246, 14524328, 15561780, 16758840, 18155410, 21786492, 27233115, 31123560, 36310820, 43572984, 54466230, 72621640, 108932460, 217864920]

約数ペア:

[(1, 217864920), (2, 108932460), (3, 72621640), (4, 54466230), (5, 43572984), (6, 36310820), (7, 31123560), (8, 27233115), (10, 21786492), (12, 18155410), (13, 16758840), (14, 15561780), (15, 14524328), (20, 10893246), (21, 10374520), (24, 9077705), (26, 8379420), (28, 7780890), (30, 7262164), (35, 6224712), (39, 5586280), (40, 5446623), (42, 5187260), (52, 4189710), (56, 3890445), (60, 3631082), (65, 3351768), (70, 3112356), (71, 3068520), (78, 2793140), (84, 2593630), (91, 2394120), (104, 2094855), (105, 2074904), (120, 1815541), (130, 1675884), (140, 1556178), (142, 1534260), (156, 1396570), (168, 1296815), (182, 1197060), (195, 1117256), (210, 1037452), (213, 1022840), (260, 837942), (273, 798040), (280, 778089), (281, 775320), (284, 767130), (312, 698285), (355, 613704), (364, 598530), (390, 558628), (420, 518726), (426, 511420), (455, 478824), (497, 438360), (520, 418971), (546, 399020), (562, 387660), (568, 383565), (710, 306852), (728, 299265), (780, 279314), (840, 259363), (843, 258440), (852, 255710), (910, 239412), (923, 236040), (994, 219180), (1065, 204568), (1092, 199510), (1124, 193830), (1365, 159608), (1405, 155064), (1420, 153426), (1491, 146120), (1560, 139657), (1686, 129220), (1704, 127855), (1820, 119706), (1846, 118020), (1967, 110760), (1988, 109590), (2130, 102284), (2184, 99755), (2248, 96915), (2485, 87672), (2730, 79804), (2769, 78680), (2810, 77532), (2840, 76713), (2982, 73060), (3372, 64610), (3640, 59853), (3653, 59640), (3692, 59010), (3934, 55380), (3976, 54795), (4215, 51688), (4260, 51142), (4615, 47208), (4970, 43836), (5460, 39902), (5538, 39340), (5620, 38766), (5901, 36920), (5964, 36530), (6461, 33720), (6744, 32305), (7306, 29820), (7384, 29505), (7455, 29224), (7868, 27690), (8430, 25844), (8520, 25571), (9230, 23604), (9835, 22152), (9940, 21918), (10920, 19951), (10959, 19880), (11076, 19670), (11240, 19383), (11802, 18460), (11928, 18265), (12922, 16860), (13845, 15736), (14612, 14910)]