81045720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1109}}^1$

素因数の和:1162

約数の個数: 192

約数和(自身を含む): 311688000

約数和(自身を除く): 230642280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 56, 58, 60, 63, 70, 72, 84, 87, 90, 105, 116, 120, 126, 140, 145, 168, 174, 180, 203, 210, 232, 252, 261, 280, 290, 315, 348, 360, 406, 420, 435, 504, 522, 580, 609, 630, 696, 812, 840, 870, 1015, 1044, 1109, 1160, 1218, 1260, 1305, 1624, 1740, 1827, 2030, 2088, 2218, 2436, 2520, 2610, 3045, 3327, 3480, 3654, 4060, 4436, 4872, 5220, 5545, 6090, 6654, 7308, 7763, 8120, 8872, 9135, 9981, 10440, 11090, 12180, 13308, 14616, 15526, 16635, 18270, 19962, 22180, 23289, 24360, 26616, 31052, 32161, 33270, 36540, 38815, 39924, 44360, 46578, 49905, 62104, 64322, 66540, 69867, 73080, 77630, 79848, 93156, 96483, 99810, 116445, 128644, 133080, 139734, 155260, 160805, 186312, 192966, 199620, 225127, 232890, 257288, 279468, 289449, 310520, 321610, 349335, 385932, 399240, 450254, 465780, 482415, 558936, 578898, 643220, 675381, 698670, 771864, 900508, 931560, 964830, 1125635, 1157796, 1286440, 1350762, 1397340, 1447245, 1801016, 1929660, 2026143, 2251270, 2315592, 2701524, 2794680, 2894490, 3376905, 3859320, 4052286, 4502540, 5403048, 5788980, 6753810, 8104572, 9005080, 10130715, 11577960, 13507620, 16209144, 20261430, 27015240, 40522860, 81045720]

約数ペア:

[(1, 81045720), (2, 40522860), (3, 27015240), (4, 20261430), (5, 16209144), (6, 13507620), (7, 11577960), (8, 10130715), (9, 9005080), (10, 8104572), (12, 6753810), (14, 5788980), (15, 5403048), (18, 4502540), (20, 4052286), (21, 3859320), (24, 3376905), (28, 2894490), (29, 2794680), (30, 2701524), (35, 2315592), (36, 2251270), (40, 2026143), (42, 1929660), (45, 1801016), (56, 1447245), (58, 1397340), (60, 1350762), (63, 1286440), (70, 1157796), (72, 1125635), (84, 964830), (87, 931560), (90, 900508), (105, 771864), (116, 698670), (120, 675381), (126, 643220), (140, 578898), (145, 558936), (168, 482415), (174, 465780), (180, 450254), (203, 399240), (210, 385932), (232, 349335), (252, 321610), (261, 310520), (280, 289449), (290, 279468), (315, 257288), (348, 232890), (360, 225127), (406, 199620), (420, 192966), (435, 186312), (504, 160805), (522, 155260), (580, 139734), (609, 133080), (630, 128644), (696, 116445), (812, 99810), (840, 96483), (870, 93156), (1015, 79848), (1044, 77630), (1109, 73080), (1160, 69867), (1218, 66540), (1260, 64322), (1305, 62104), (1624, 49905), (1740, 46578), (1827, 44360), (2030, 39924), (2088, 38815), (2218, 36540), (2436, 33270), (2520, 32161), (2610, 31052), (3045, 26616), (3327, 24360), (3480, 23289), (3654, 22180), (4060, 19962), (4436, 18270), (4872, 16635), (5220, 15526), (5545, 14616), (6090, 13308), (6654, 12180), (7308, 11090), (7763, 10440), (8120, 9981), (8872, 9135)]