78013775

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 115492608

約数和(自身を除く): 37478833

約数列:

[1, 5, 7, 25, 35, 41, 83, 131, 175, 205, 287, 415, 581, 655, 917, 1025, 1435, 2075, 2905, 3275, 3403, 4585, 5371, 7175, 10873, 14525, 17015, 22925, 23821, 26855, 37597, 54365, 76111, 85075, 119105, 134275, 187985, 271825, 380555, 445793, 595525, 939925, 1902775, 2228965, 3120551, 11144825, 15602755, 78013775]

約数ペア:

[(1, 78013775), (5, 15602755), (7, 11144825), (25, 3120551), (35, 2228965), (41, 1902775), (83, 939925), (131, 595525), (175, 445793), (205, 380555), (287, 271825), (415, 187985), (581, 134275), (655, 119105), (917, 85075), (1025, 76111), (1435, 54365), (2075, 37597), (2905, 26855), (3275, 23821), (3403, 22925), (4585, 17015), (5371, 14525), (7175, 10873)]