85718255

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 122265600

約数和(自身を除く): 36547345

約数列:

[1, 5, 7, 31, 35, 155, 199, 217, 397, 995, 1085, 1393, 1985, 2779, 6169, 6965, 12307, 13895, 30845, 43183, 61535, 79003, 86149, 215915, 395015, 430745, 553021, 2449093, 2765105, 12245465, 17143651, 85718255]

約数ペア:

[(1, 85718255), (5, 17143651), (7, 12245465), (31, 2765105), (35, 2449093), (155, 553021), (199, 430745), (217, 395015), (397, 215915), (995, 86149), (1085, 79003), (1393, 61535), (1985, 43183), (2779, 30845), (6169, 13895), (6965, 12307)]