8387825

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 24

約数和(自身を含む): 10951680

約数和(自身を除く): 2563855

約数列:

[1, 5, 25, 31, 79, 137, 155, 395, 685, 775, 1975, 2449, 3425, 4247, 10823, 12245, 21235, 54115, 61225, 106175, 270575, 335513, 1677565, 8387825]

約数ペア:

[(1, 8387825), (5, 1677565), (25, 335513), (31, 270575), (79, 106175), (137, 61225), (155, 54115), (395, 21235), (685, 12245), (775, 10823), (1975, 4247), (2449, 3425)]