8275720

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{661}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 18708120

約数和(自身を除く): 10432400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 661, 1252, 1322, 1565, 2504, 2644, 3130, 3305, 5288, 6260, 6610, 12520, 13220, 26440, 206893, 413786, 827572, 1034465, 1655144, 2068930, 4137860, 8275720]

約数ペア:

[(1, 8275720), (2, 4137860), (4, 2068930), (5, 1655144), (8, 1034465), (10, 827572), (20, 413786), (40, 206893), (313, 26440), (626, 13220), (661, 12520), (1252, 6610), (1322, 6260), (1565, 5288), (2504, 3305), (2644, 3130)]