31606680

素因数分解:

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

素因数の和:409

約数の個数: 128

約数和(自身を含む): 109486080

約数和(自身を除く): 77879400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 191, 197, 210, 280, 382, 394, 420, 573, 591, 764, 788, 840, 955, 985, 1146, 1182, 1337, 1379, 1528, 1576, 1910, 1970, 2292, 2364, 2674, 2758, 2865, 2955, 3820, 3940, 4011, 4137, 4584, 4728, 5348, 5516, 5730, 5910, 6685, 6895, 7640, 7880, 8022, 8274, 10696, 11032, 11460, 11820, 13370, 13790, 16044, 16548, 20055, 20685, 22920, 23640, 26740, 27580, 32088, 33096, 37627, 40110, 41370, 53480, 55160, 75254, 80220, 82740, 112881, 150508, 160440, 165480, 188135, 225762, 263389, 301016, 376270, 451524, 526778, 564405, 752540, 790167, 903048, 1053556, 1128810, 1316945, 1505080, 1580334, 2107112, 2257620, 2633890, 3160668, 3950835, 4515240, 5267780, 6321336, 7901670, 10535560, 15803340, 31606680]

約数ペア:

[(1, 31606680), (2, 15803340), (3, 10535560), (4, 7901670), (5, 6321336), (6, 5267780), (7, 4515240), (8, 3950835), (10, 3160668), (12, 2633890), (14, 2257620), (15, 2107112), (20, 1580334), (21, 1505080), (24, 1316945), (28, 1128810), (30, 1053556), (35, 903048), (40, 790167), (42, 752540), (56, 564405), (60, 526778), (70, 451524), (84, 376270), (105, 301016), (120, 263389), (140, 225762), (168, 188135), (191, 165480), (197, 160440), (210, 150508), (280, 112881), (382, 82740), (394, 80220), (420, 75254), (573, 55160), (591, 53480), (764, 41370), (788, 40110), (840, 37627), (955, 33096), (985, 32088), (1146, 27580), (1182, 26740), (1337, 23640), (1379, 22920), (1528, 20685), (1576, 20055), (1910, 16548), (1970, 16044), (2292, 13790), (2364, 13370), (2674, 11820), (2758, 11460), (2865, 11032), (2955, 10696), (3820, 8274), (3940, 8022), (4011, 7880), (4137, 7640), (4584, 6895), (4728, 6685), (5348, 5910), (5516, 5730)]