211897140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^2$

素因数の和:426

約数の個数: 144

約数和(自身を含む): 733955712

約数和(自身を除く): 522058572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 197, 210, 260, 273, 364, 390, 394, 420, 455, 546, 591, 780, 788, 910, 985, 1092, 1182, 1365, 1379, 1820, 1970, 2364, 2561, 2730, 2758, 2955, 3940, 4137, 5122, 5460, 5516, 5910, 6895, 7683, 8274, 10244, 11820, 12805, 13790, 15366, 16548, 17927, 20685, 25610, 27580, 30732, 35854, 38415, 38809, 41370, 51220, 53781, 71708, 76830, 77618, 82740, 89635, 107562, 116427, 153660, 155236, 179270, 194045, 215124, 232854, 268905, 271663, 358540, 388090, 465708, 504517, 537810, 543326, 582135, 776180, 814989, 1009034, 1075620, 1086652, 1164270, 1358315, 1513551, 1629978, 2018068, 2328540, 2522585, 2716630, 3027102, 3259956, 3531619, 4074945, 5045170, 5433260, 6054204, 7063238, 7567755, 8149890, 10090340, 10594857, 14126476, 15135510, 16299780, 17658095, 21189714, 30271020, 35316190, 42379428, 52974285, 70632380, 105948570, 211897140]

約数ペア:

[(1, 211897140), (2, 105948570), (3, 70632380), (4, 52974285), (5, 42379428), (6, 35316190), (7, 30271020), (10, 21189714), (12, 17658095), (13, 16299780), (14, 15135510), (15, 14126476), (20, 10594857), (21, 10090340), (26, 8149890), (28, 7567755), (30, 7063238), (35, 6054204), (39, 5433260), (42, 5045170), (52, 4074945), (60, 3531619), (65, 3259956), (70, 3027102), (78, 2716630), (84, 2522585), (91, 2328540), (105, 2018068), (130, 1629978), (140, 1513551), (156, 1358315), (182, 1164270), (195, 1086652), (197, 1075620), (210, 1009034), (260, 814989), (273, 776180), (364, 582135), (390, 543326), (394, 537810), (420, 504517), (455, 465708), (546, 388090), (591, 358540), (780, 271663), (788, 268905), (910, 232854), (985, 215124), (1092, 194045), (1182, 179270), (1365, 155236), (1379, 153660), (1820, 116427), (1970, 107562), (2364, 89635), (2561, 82740), (2730, 77618), (2758, 76830), (2955, 71708), (3940, 53781), (4137, 51220), (5122, 41370), (5460, 38809), (5516, 38415), (5910, 35854), (6895, 30732), (7683, 27580), (8274, 25610), (10244, 20685), (11820, 17927), (12805, 16548), (13790, 15366)]