20178382980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{7867}}^1$

素因数の和:8114

約数の個数: 192

約数和(自身を含む): 67000614912

約数和(自身を除く): 46822231932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 60, 62, 70, 84, 93, 105, 124, 140, 155, 186, 197, 210, 217, 310, 372, 394, 420, 434, 465, 591, 620, 651, 788, 868, 930, 985, 1085, 1182, 1302, 1379, 1860, 1970, 2170, 2364, 2604, 2758, 2955, 3255, 3940, 4137, 4340, 5516, 5910, 6107, 6510, 6895, 7867, 8274, 11820, 12214, 13020, 13790, 15734, 16548, 18321, 20685, 23601, 24428, 27580, 30535, 31468, 36642, 39335, 41370, 42749, 47202, 55069, 61070, 73284, 78670, 82740, 85498, 91605, 94404, 110138, 118005, 122140, 128247, 157340, 165207, 170996, 183210, 213745, 220276, 236010, 243877, 256494, 275345, 330414, 366420, 427490, 472020, 487754, 512988, 550690, 641235, 660828, 731631, 826035, 854980, 975508, 1101380, 1219385, 1282470, 1463262, 1549799, 1652070, 1707139, 2438770, 2564940, 2926524, 3099598, 3304140, 3414278, 3658155, 4649397, 4877540, 5121417, 6199196, 6828556, 7316310, 7748995, 8535695, 9298794, 10242834, 10848593, 14632620, 15497990, 17071390, 18597588, 20485668, 21697186, 23246985, 25607085, 30995980, 32545779, 34142780, 43394372, 46493970, 48043769, 51214170, 54242965, 65091558, 92987940, 96087538, 102428340, 108485930, 130183116, 144131307, 162728895, 192175076, 216971860, 240218845, 288262614, 325457790, 336306383, 480437690, 576525228, 650915580, 672612766, 720656535, 960875380, 1008919149, 1345225532, 1441313070, 1681531915, 2017838298, 2882626140, 3363063830, 4035676596, 5044595745, 6726127660, 10089191490, 20178382980]

約数ペア:

[(1, 20178382980), (2, 10089191490), (3, 6726127660), (4, 5044595745), (5, 4035676596), (6, 3363063830), (7, 2882626140), (10, 2017838298), (12, 1681531915), (14, 1441313070), (15, 1345225532), (20, 1008919149), (21, 960875380), (28, 720656535), (30, 672612766), (31, 650915580), (35, 576525228), (42, 480437690), (60, 336306383), (62, 325457790), (70, 288262614), (84, 240218845), (93, 216971860), (105, 192175076), (124, 162728895), (140, 144131307), (155, 130183116), (186, 108485930), (197, 102428340), (210, 96087538), (217, 92987940), (310, 65091558), (372, 54242965), (394, 51214170), (420, 48043769), (434, 46493970), (465, 43394372), (591, 34142780), (620, 32545779), (651, 30995980), (788, 25607085), (868, 23246985), (930, 21697186), (985, 20485668), (1085, 18597588), (1182, 17071390), (1302, 15497990), (1379, 14632620), (1860, 10848593), (1970, 10242834), (2170, 9298794), (2364, 8535695), (2604, 7748995), (2758, 7316310), (2955, 6828556), (3255, 6199196), (3940, 5121417), (4137, 4877540), (4340, 4649397), (5516, 3658155), (5910, 3414278), (6107, 3304140), (6510, 3099598), (6895, 2926524), (7867, 2564940), (8274, 2438770), (11820, 1707139), (12214, 1652070), (13020, 1549799), (13790, 1463262), (15734, 1282470), (16548, 1219385), (18321, 1101380), (20685, 975508), (23601, 854980), (24428, 826035), (27580, 731631), (30535, 660828), (31468, 641235), (36642, 550690), (39335, 512988), (41370, 487754), (42749, 472020), (47202, 427490), (55069, 366420), (61070, 330414), (73284, 275345), (78670, 256494), (82740, 243877), (85498, 236010), (91605, 220276), (94404, 213745), (110138, 183210), (118005, 170996), (122140, 165207), (128247, 157340)]