12704420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{661}}^1$

素因数の和:732

約数の個数: 36

約数和(自身を含む): 27609372

約数和(自身を除く): 14904952

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 661, 961, 1322, 1922, 2644, 3305, 3844, 4805, 6610, 9610, 13220, 19220, 20491, 40982, 81964, 102455, 204910, 409820, 635221, 1270442, 2540884, 3176105, 6352210, 12704420]

約数ペア:

[(1, 12704420), (2, 6352210), (4, 3176105), (5, 2540884), (10, 1270442), (20, 635221), (31, 409820), (62, 204910), (124, 102455), (155, 81964), (310, 40982), (620, 20491), (661, 19220), (961, 13220), (1322, 9610), (1922, 6610), (2644, 4805), (3305, 3844)]