138672240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{419}}^1$

素因数の和:639

約数の個数: 160

約数和(自身を含む): 494968320

約数和(自身を除く): 356296080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 197, 210, 240, 280, 336, 394, 419, 420, 560, 591, 788, 838, 840, 985, 1182, 1257, 1379, 1576, 1676, 1680, 1970, 2095, 2364, 2514, 2758, 2933, 2955, 3152, 3352, 3940, 4137, 4190, 4728, 5028, 5516, 5866, 5910, 6285, 6704, 6895, 7880, 8274, 8380, 8799, 9456, 10056, 11032, 11732, 11820, 12570, 13790, 14665, 15760, 16548, 16760, 17598, 20112, 20685, 22064, 23464, 23640, 25140, 27580, 29330, 33096, 33520, 35196, 41370, 43995, 46928, 47280, 50280, 55160, 58660, 66192, 70392, 82543, 82740, 87990, 100560, 110320, 117320, 140784, 165086, 165480, 175980, 234640, 247629, 330172, 330960, 351960, 412715, 495258, 577801, 660344, 703920, 825430, 990516, 1155602, 1238145, 1320688, 1650860, 1733403, 1981032, 2311204, 2476290, 2889005, 3301720, 3466806, 3962064, 4622408, 4952580, 5778010, 6603440, 6933612, 8667015, 9244816, 9905160, 11556020, 13867224, 17334030, 19810320, 23112040, 27734448, 34668060, 46224080, 69336120, 138672240]

約数ペア:

[(1, 138672240), (2, 69336120), (3, 46224080), (4, 34668060), (5, 27734448), (6, 23112040), (7, 19810320), (8, 17334030), (10, 13867224), (12, 11556020), (14, 9905160), (15, 9244816), (16, 8667015), (20, 6933612), (21, 6603440), (24, 5778010), (28, 4952580), (30, 4622408), (35, 3962064), (40, 3466806), (42, 3301720), (48, 2889005), (56, 2476290), (60, 2311204), (70, 1981032), (80, 1733403), (84, 1650860), (105, 1320688), (112, 1238145), (120, 1155602), (140, 990516), (168, 825430), (197, 703920), (210, 660344), (240, 577801), (280, 495258), (336, 412715), (394, 351960), (419, 330960), (420, 330172), (560, 247629), (591, 234640), (788, 175980), (838, 165480), (840, 165086), (985, 140784), (1182, 117320), (1257, 110320), (1379, 100560), (1576, 87990), (1676, 82740), (1680, 82543), (1970, 70392), (2095, 66192), (2364, 58660), (2514, 55160), (2758, 50280), (2933, 47280), (2955, 46928), (3152, 43995), (3352, 41370), (3940, 35196), (4137, 33520), (4190, 33096), (4728, 29330), (5028, 27580), (5516, 25140), (5866, 23640), (5910, 23464), (6285, 22064), (6704, 20685), (6895, 20112), (7880, 17598), (8274, 16760), (8380, 16548), (8799, 15760), (9456, 14665), (10056, 13790), (11032, 12570), (11732, 11820)]