31025385

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{277}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 57245760

約数和(自身を除く): 26220375

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 131, 171, 277, 285, 393, 655, 831, 855, 1179, 1385, 1965, 2489, 2493, 4155, 5263, 5895, 7467, 12445, 12465, 15789, 22401, 26315, 36287, 37335, 47367, 78945, 108861, 112005, 181435, 236835, 326583, 544305, 689453, 1632915, 2068359, 3447265, 6205077, 10341795, 31025385]

約数ペア:

[(1, 31025385), (3, 10341795), (5, 6205077), (9, 3447265), (15, 2068359), (19, 1632915), (45, 689453), (57, 544305), (95, 326583), (131, 236835), (171, 181435), (277, 112005), (285, 108861), (393, 78945), (655, 47367), (831, 37335), (855, 36287), (1179, 26315), (1385, 22401), (1965, 15789), (2489, 12465), (2493, 12445), (4155, 7467), (5263, 5895)]