81976278

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{421}}^1$

素因数の和:549

約数の個数: 64

約数和(自身を含む): 183762432

約数和(自身を除く): 101786154

約数列:

[1, 2, 3, 6, 17, 23, 34, 46, 51, 69, 83, 102, 138, 166, 249, 391, 421, 498, 782, 842, 1173, 1263, 1411, 1909, 2346, 2526, 2822, 3818, 4233, 5727, 7157, 8466, 9683, 11454, 14314, 19366, 21471, 29049, 32453, 34943, 42942, 58098, 64906, 69886, 97359, 104829, 164611, 194718, 209658, 329222, 493833, 594031, 803689, 987666, 1188062, 1607378, 1782093, 2411067, 3564186, 4822134, 13662713, 27325426, 40988139, 81976278]

約数ペア:

[(1, 81976278), (2, 40988139), (3, 27325426), (6, 13662713), (17, 4822134), (23, 3564186), (34, 2411067), (46, 1782093), (51, 1607378), (69, 1188062), (83, 987666), (102, 803689), (138, 594031), (166, 493833), (249, 329222), (391, 209658), (421, 194718), (498, 164611), (782, 104829), (842, 97359), (1173, 69886), (1263, 64906), (1411, 58098), (1909, 42942), (2346, 34943), (2526, 32453), (2822, 29049), (3818, 21471), (4233, 19366), (5727, 14314), (7157, 11454), (8466, 9683)]