256431465

素因数分解:

$3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 452424960

約数和(自身を除く): 195993495

約数列:

[1, 3, 5, 9, 15, 45, 113, 211, 239, 339, 565, 633, 717, 1017, 1055, 1195, 1695, 1899, 2151, 3165, 3585, 5085, 9495, 10755, 23843, 27007, 50429, 71529, 81021, 119215, 135035, 151287, 214587, 243063, 252145, 357645, 405105, 453861, 756435, 1072935, 1215315, 2269305, 5698477, 17095431, 28492385, 51286293, 85477155, 256431465]

約数ペア:

[(1, 256431465), (3, 85477155), (5, 51286293), (9, 28492385), (15, 17095431), (45, 5698477), (113, 2269305), (211, 1215315), (239, 1072935), (339, 756435), (565, 453861), (633, 405105), (717, 357645), (1017, 252145), (1055, 243063), (1195, 214587), (1695, 151287), (1899, 135035), (2151, 119215), (3165, 81021), (3585, 71529), (5085, 50429), (9495, 27007), (10755, 23843)]