28334930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:219

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 29725870

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 79, 89, 130, 155, 158, 178, 310, 395, 403, 445, 790, 806, 890, 1027, 1157, 2015, 2054, 2314, 2449, 2759, 4030, 4898, 5135, 5518, 5785, 7031, 10270, 11570, 12245, 13795, 14062, 24490, 27590, 31837, 35155, 35867, 63674, 70310, 71734, 91403, 159185, 179335, 182806, 217961, 318370, 358670, 435922, 457015, 914030, 1089805, 2179610, 2833493, 5666986, 14167465, 28334930]

約数ペア:

[(1, 28334930), (2, 14167465), (5, 5666986), (10, 2833493), (13, 2179610), (26, 1089805), (31, 914030), (62, 457015), (65, 435922), (79, 358670), (89, 318370), (130, 217961), (155, 182806), (158, 179335), (178, 159185), (310, 91403), (395, 71734), (403, 70310), (445, 63674), (790, 35867), (806, 35155), (890, 31837), (1027, 27590), (1157, 24490), (2015, 14062), (2054, 13795), (2314, 12245), (2449, 11570), (2759, 10270), (4030, 7031), (4898, 5785), (5135, 5518)]