81706144

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{997}}^1$

素因数の和:1217

約数の個数: 48

約数和(自身を含む): 174286728

約数和(自身を除く): 92580584

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 197, 208, 394, 416, 788, 997, 1576, 1994, 2561, 3152, 3988, 5122, 6304, 7976, 10244, 12961, 15952, 20488, 25922, 31904, 40976, 51844, 81952, 103688, 196409, 207376, 392818, 414752, 785636, 1571272, 2553317, 3142544, 5106634, 6285088, 10213268, 20426536, 40853072, 81706144]

約数ペア:

[(1, 81706144), (2, 40853072), (4, 20426536), (8, 10213268), (13, 6285088), (16, 5106634), (26, 3142544), (32, 2553317), (52, 1571272), (104, 785636), (197, 414752), (208, 392818), (394, 207376), (416, 196409), (788, 103688), (997, 81952), (1576, 51844), (1994, 40976), (2561, 31904), (3152, 25922), (3988, 20488), (5122, 15952), (6304, 12961), (7976, 10244)]