78458520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:206

約数の個数: 256

約数和(自身を含む): 291962880

約数和(自身を除く): 213504360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 31, 35, 40, 42, 46, 56, 60, 62, 69, 70, 84, 92, 93, 105, 115, 120, 124, 131, 138, 140, 155, 161, 168, 184, 186, 210, 217, 230, 248, 262, 276, 280, 310, 322, 345, 372, 393, 420, 434, 460, 465, 483, 524, 552, 620, 644, 651, 655, 690, 713, 744, 786, 805, 840, 868, 917, 920, 930, 966, 1048, 1085, 1240, 1288, 1302, 1310, 1380, 1426, 1572, 1610, 1736, 1834, 1860, 1932, 1965, 2139, 2170, 2415, 2604, 2620, 2751, 2760, 2852, 3013, 3144, 3220, 3255, 3565, 3668, 3720, 3864, 3930, 4061, 4278, 4340, 4585, 4830, 4991, 5208, 5240, 5502, 5704, 6026, 6440, 6510, 7130, 7336, 7860, 8122, 8556, 8680, 9039, 9170, 9660, 9982, 10695, 11004, 12052, 12183, 13020, 13755, 14260, 14973, 15065, 15720, 16244, 17112, 18078, 18340, 19320, 19964, 20305, 21091, 21390, 22008, 24104, 24366, 24955, 26040, 27510, 28427, 28520, 29946, 30130, 32488, 36156, 36680, 39928, 40610, 42182, 42780, 45195, 48732, 49910, 55020, 56854, 59892, 60260, 60915, 63273, 72312, 74865, 81220, 84364, 85281, 85560, 90390, 93403, 97464, 99820, 105455, 110040, 113708, 119784, 120520, 121830, 126546, 142135, 149730, 162440, 168728, 170562, 180780, 186806, 199640, 210910, 227416, 243660, 253092, 280209, 284270, 299460, 316365, 341124, 361560, 373612, 421820, 426405, 467015, 487320, 506184, 560418, 568540, 598920, 632730, 653821, 682248, 747224, 843640, 852810, 934030, 1120836, 1137080, 1265460, 1307642, 1401045, 1705620, 1868060, 1961463, 2241672, 2530920, 2615284, 2802090, 3269105, 3411240, 3736120, 3922926, 5230568, 5604180, 6538210, 7845852, 9807315, 11208360, 13076420, 15691704, 19614630, 26152840, 39229260, 78458520]

約数ペア:

[(1, 78458520), (2, 39229260), (3, 26152840), (4, 19614630), (5, 15691704), (6, 13076420), (7, 11208360), (8, 9807315), (10, 7845852), (12, 6538210), (14, 5604180), (15, 5230568), (20, 3922926), (21, 3736120), (23, 3411240), (24, 3269105), (28, 2802090), (30, 2615284), (31, 2530920), (35, 2241672), (40, 1961463), (42, 1868060), (46, 1705620), (56, 1401045), (60, 1307642), (62, 1265460), (69, 1137080), (70, 1120836), (84, 934030), (92, 852810), (93, 843640), (105, 747224), (115, 682248), (120, 653821), (124, 632730), (131, 598920), (138, 568540), (140, 560418), (155, 506184), (161, 487320), (168, 467015), (184, 426405), (186, 421820), (210, 373612), (217, 361560), (230, 341124), (248, 316365), (262, 299460), (276, 284270), (280, 280209), (310, 253092), (322, 243660), (345, 227416), (372, 210910), (393, 199640), (420, 186806), (434, 180780), (460, 170562), (465, 168728), (483, 162440), (524, 149730), (552, 142135), (620, 126546), (644, 121830), (651, 120520), (655, 119784), (690, 113708), (713, 110040), (744, 105455), (786, 99820), (805, 97464), (840, 93403), (868, 90390), (917, 85560), (920, 85281), (930, 84364), (966, 81220), (1048, 74865), (1085, 72312), (1240, 63273), (1288, 60915), (1302, 60260), (1310, 59892), (1380, 56854), (1426, 55020), (1572, 49910), (1610, 48732), (1736, 45195), (1834, 42780), (1860, 42182), (1932, 40610), (1965, 39928), (2139, 36680), (2170, 36156), (2415, 32488), (2604, 30130), (2620, 29946), (2751, 28520), (2760, 28427), (2852, 27510), (3013, 26040), (3144, 24955), (3220, 24366), (3255, 24104), (3565, 22008), (3668, 21390), (3720, 21091), (3864, 20305), (3930, 19964), (4061, 19320), (4278, 18340), (4340, 18078), (4585, 17112), (4830, 16244), (4991, 15720), (5208, 15065), (5240, 14973), (5502, 14260), (5704, 13755), (6026, 13020), (6440, 12183), (6510, 12052), (7130, 11004), (7336, 10695), (7860, 9982), (8122, 9660), (8556, 9170), (8680, 9039)]