28638370

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 58358880

約数和(自身を除く): 29720510

約数列:

[1, 2, 5, 10, 17, 29, 34, 37, 58, 74, 85, 145, 157, 170, 185, 290, 314, 370, 493, 629, 785, 986, 1073, 1258, 1570, 2146, 2465, 2669, 3145, 4553, 4930, 5338, 5365, 5809, 6290, 9106, 10730, 11618, 13345, 18241, 22765, 26690, 29045, 36482, 45530, 58090, 77401, 91205, 98753, 154802, 168461, 182410, 197506, 336922, 387005, 493765, 774010, 842305, 987530, 1684610, 2863837, 5727674, 14319185, 28638370]

約数ペア:

[(1, 28638370), (2, 14319185), (5, 5727674), (10, 2863837), (17, 1684610), (29, 987530), (34, 842305), (37, 774010), (58, 493765), (74, 387005), (85, 336922), (145, 197506), (157, 182410), (170, 168461), (185, 154802), (290, 98753), (314, 91205), (370, 77401), (493, 58090), (629, 45530), (785, 36482), (986, 29045), (1073, 26690), (1258, 22765), (1570, 18241), (2146, 13345), (2465, 11618), (2669, 10730), (3145, 9106), (4553, 6290), (4930, 5809), (5338, 5365)]