81760679

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 113278464

約数和(自身を除く): 31517785

約数列:

[1, 7, 11, 13, 61, 77, 91, 103, 143, 169, 427, 671, 721, 793, 1001, 1133, 1183, 1339, 1859, 4697, 5551, 6283, 7931, 8723, 9373, 10309, 13013, 14729, 17407, 43981, 61061, 69113, 72163, 81679, 103103, 113399, 121849, 191477, 483791, 571753, 793793, 898469, 1061827, 1340339, 6289283, 7432789, 11680097, 81760679]

約数ペア:

[(1, 81760679), (7, 11680097), (11, 7432789), (13, 6289283), (61, 1340339), (77, 1061827), (91, 898469), (103, 793793), (143, 571753), (169, 483791), (427, 191477), (671, 121849), (721, 113399), (793, 103103), (1001, 81679), (1133, 72163), (1183, 69113), (1339, 61061), (1859, 43981), (4697, 17407), (5551, 14729), (6283, 13013), (7931, 10309), (8723, 9373)]