81872674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{647}}^1$

素因数の和:850

約数の個数: 32

約数和(自身を含む): 137604096

約数和(自身を除く): 55731422

約数列:

[1, 2, 13, 26, 31, 62, 157, 314, 403, 647, 806, 1294, 2041, 4082, 4867, 8411, 9734, 16822, 20057, 40114, 63271, 101579, 126542, 203158, 260741, 521482, 1320527, 2641054, 3148949, 6297898, 40936337, 81872674]

約数ペア:

[(1, 81872674), (2, 40936337), (13, 6297898), (26, 3148949), (31, 2641054), (62, 1320527), (157, 521482), (314, 260741), (403, 203158), (647, 126542), (806, 101579), (1294, 63271), (2041, 40114), (4082, 20057), (4867, 16822), (8411, 9734)]