638318520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8171}}^1$

素因数の和:8226

約数の個数: 192

約数和(自身を含む): 2447677440

約数和(自身を除く): 1809358920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 120, 124, 126, 140, 155, 168, 180, 186, 210, 217, 248, 252, 279, 280, 310, 315, 360, 372, 420, 434, 465, 504, 558, 620, 630, 651, 744, 840, 868, 930, 1085, 1116, 1240, 1260, 1302, 1395, 1736, 1860, 1953, 2170, 2232, 2520, 2604, 2790, 3255, 3720, 3906, 4340, 5208, 5580, 6510, 7812, 8171, 8680, 9765, 11160, 13020, 15624, 16342, 19530, 24513, 26040, 32684, 39060, 40855, 49026, 57197, 65368, 73539, 78120, 81710, 98052, 114394, 122565, 147078, 163420, 171591, 196104, 228788, 245130, 253301, 285985, 294156, 326840, 343182, 367695, 457576, 490260, 506602, 514773, 571970, 588312, 686364, 735390, 759903, 857955, 980520, 1013204, 1029546, 1143940, 1266505, 1372728, 1470780, 1519806, 1715910, 1773107, 2026408, 2059092, 2279709, 2287880, 2533010, 2573865, 2941560, 3039612, 3431820, 3546214, 3799515, 4118184, 4559418, 5066020, 5147730, 5319321, 6079224, 6863640, 7092428, 7599030, 8865535, 9118836, 10132040, 10295460, 10638642, 11398545, 14184856, 15198060, 15957963, 17731070, 18237672, 20590920, 21277284, 22797090, 26596605, 30396120, 31915926, 35462140, 42554568, 45594180, 53193210, 63831852, 70924280, 79789815, 91188360, 106386420, 127663704, 159579630, 212772840, 319159260, 638318520]

約数ペア:

[(1, 638318520), (2, 319159260), (3, 212772840), (4, 159579630), (5, 127663704), (6, 106386420), (7, 91188360), (8, 79789815), (9, 70924280), (10, 63831852), (12, 53193210), (14, 45594180), (15, 42554568), (18, 35462140), (20, 31915926), (21, 30396120), (24, 26596605), (28, 22797090), (30, 21277284), (31, 20590920), (35, 18237672), (36, 17731070), (40, 15957963), (42, 15198060), (45, 14184856), (56, 11398545), (60, 10638642), (62, 10295460), (63, 10132040), (70, 9118836), (72, 8865535), (84, 7599030), (90, 7092428), (93, 6863640), (105, 6079224), (120, 5319321), (124, 5147730), (126, 5066020), (140, 4559418), (155, 4118184), (168, 3799515), (180, 3546214), (186, 3431820), (210, 3039612), (217, 2941560), (248, 2573865), (252, 2533010), (279, 2287880), (280, 2279709), (310, 2059092), (315, 2026408), (360, 1773107), (372, 1715910), (420, 1519806), (434, 1470780), (465, 1372728), (504, 1266505), (558, 1143940), (620, 1029546), (630, 1013204), (651, 980520), (744, 857955), (840, 759903), (868, 735390), (930, 686364), (1085, 588312), (1116, 571970), (1240, 514773), (1260, 506602), (1302, 490260), (1395, 457576), (1736, 367695), (1860, 343182), (1953, 326840), (2170, 294156), (2232, 285985), (2520, 253301), (2604, 245130), (2790, 228788), (3255, 196104), (3720, 171591), (3906, 163420), (4340, 147078), (5208, 122565), (5580, 114394), (6510, 98052), (7812, 81710), (8171, 78120), (8680, 73539), (9765, 65368), (11160, 57197), (13020, 49026), (15624, 40855), (16342, 39060), (19530, 32684), (24513, 26040)]