221246760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:416

約数の個数: 192

約数和(自身を含む): 780088320

約数和(自身を除く): 558841560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 191, 196, 197, 210, 245, 280, 294, 382, 392, 394, 420, 490, 573, 588, 591, 735, 764, 788, 840, 955, 980, 985, 1146, 1176, 1182, 1337, 1379, 1470, 1528, 1576, 1910, 1960, 1970, 2292, 2364, 2674, 2758, 2865, 2940, 2955, 3820, 3940, 4011, 4137, 4584, 4728, 5348, 5516, 5730, 5880, 5910, 6685, 6895, 7640, 7880, 8022, 8274, 9359, 9653, 10696, 11032, 11460, 11820, 13370, 13790, 16044, 16548, 18718, 19306, 20055, 20685, 22920, 23640, 26740, 27580, 28077, 28959, 32088, 33096, 37436, 37627, 38612, 40110, 41370, 46795, 48265, 53480, 55160, 56154, 57918, 74872, 75254, 77224, 80220, 82740, 93590, 96530, 112308, 112881, 115836, 140385, 144795, 150508, 160440, 165480, 187180, 188135, 193060, 224616, 225762, 231672, 263389, 280770, 289590, 301016, 374360, 376270, 386120, 451524, 526778, 561540, 564405, 579180, 752540, 790167, 903048, 1053556, 1123080, 1128810, 1158360, 1316945, 1505080, 1580334, 1843723, 2107112, 2257620, 2633890, 3160668, 3687446, 3950835, 4515240, 5267780, 5531169, 6321336, 7374892, 7901670, 9218615, 10535560, 11062338, 14749784, 15803340, 18437230, 22124676, 27655845, 31606680, 36874460, 44249352, 55311690, 73748920, 110623380, 221246760]

約数ペア:

[(1, 221246760), (2, 110623380), (3, 73748920), (4, 55311690), (5, 44249352), (6, 36874460), (7, 31606680), (8, 27655845), (10, 22124676), (12, 18437230), (14, 15803340), (15, 14749784), (20, 11062338), (21, 10535560), (24, 9218615), (28, 7901670), (30, 7374892), (35, 6321336), (40, 5531169), (42, 5267780), (49, 4515240), (56, 3950835), (60, 3687446), (70, 3160668), (84, 2633890), (98, 2257620), (105, 2107112), (120, 1843723), (140, 1580334), (147, 1505080), (168, 1316945), (191, 1158360), (196, 1128810), (197, 1123080), (210, 1053556), (245, 903048), (280, 790167), (294, 752540), (382, 579180), (392, 564405), (394, 561540), (420, 526778), (490, 451524), (573, 386120), (588, 376270), (591, 374360), (735, 301016), (764, 289590), (788, 280770), (840, 263389), (955, 231672), (980, 225762), (985, 224616), (1146, 193060), (1176, 188135), (1182, 187180), (1337, 165480), (1379, 160440), (1470, 150508), (1528, 144795), (1576, 140385), (1910, 115836), (1960, 112881), (1970, 112308), (2292, 96530), (2364, 93590), (2674, 82740), (2758, 80220), (2865, 77224), (2940, 75254), (2955, 74872), (3820, 57918), (3940, 56154), (4011, 55160), (4137, 53480), (4584, 48265), (4728, 46795), (5348, 41370), (5516, 40110), (5730, 38612), (5880, 37627), (5910, 37436), (6685, 33096), (6895, 32088), (7640, 28959), (7880, 28077), (8022, 27580), (8274, 26740), (9359, 23640), (9653, 22920), (10696, 20685), (11032, 20055), (11460, 19306), (11820, 18718), (13370, 16548), (13790, 16044)]