51066340

素因数分解:

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

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 116191152

約数和(自身を除く): 65124812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 197, 260, 394, 788, 985, 997, 1970, 1994, 2561, 3940, 3988, 4985, 5122, 9970, 10244, 12805, 12961, 19940, 25610, 25922, 51220, 51844, 64805, 129610, 196409, 259220, 392818, 785636, 982045, 1964090, 2553317, 3928180, 5106634, 10213268, 12766585, 25533170, 51066340]

約数ペア:

[(1, 51066340), (2, 25533170), (4, 12766585), (5, 10213268), (10, 5106634), (13, 3928180), (20, 2553317), (26, 1964090), (52, 982045), (65, 785636), (130, 392818), (197, 259220), (260, 196409), (394, 129610), (788, 64805), (985, 51844), (997, 51220), (1970, 25922), (1994, 25610), (2561, 19940), (3940, 12961), (3988, 12805), (4985, 10244), (5122, 9970)]