78409881

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{881}}^1$

素因数の和:958

約数の個数: 48

約数和(自身を含む): 132088320

約数和(自身を除く): 53678439

約数列:

[1, 3, 9, 11, 29, 31, 33, 87, 93, 99, 261, 279, 319, 341, 881, 899, 957, 1023, 2643, 2697, 2871, 3069, 7929, 8091, 9691, 9889, 25549, 27311, 29073, 29667, 76647, 81933, 87219, 89001, 229941, 245799, 281039, 300421, 792019, 843117, 901263, 2376057, 2529351, 2703789, 7128171, 8712209, 26136627, 78409881]

約数ペア:

[(1, 78409881), (3, 26136627), (9, 8712209), (11, 7128171), (29, 2703789), (31, 2529351), (33, 2376057), (87, 901263), (93, 843117), (99, 792019), (261, 300421), (279, 281039), (319, 245799), (341, 229941), (881, 89001), (899, 87219), (957, 81933), (1023, 76647), (2643, 29667), (2697, 29073), (2871, 27311), (3069, 25549), (7929, 9889), (8091, 9691)]