1293522040

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{442987}}^1$

素因数の和:443071

約数の個数: 32

約数和(自身を含む): 2950300080

約数和(自身を除く): 1656778040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 442987, 885974, 1771948, 2214935, 3543896, 4429870, 8859740, 17719480, 32338051, 64676102, 129352204, 161690255, 258704408, 323380510, 646761020, 1293522040]

約数ペア:

[(1, 1293522040), (2, 646761020), (4, 323380510), (5, 258704408), (8, 161690255), (10, 129352204), (20, 64676102), (40, 32338051), (73, 17719480), (146, 8859740), (292, 4429870), (365, 3543896), (584, 2214935), (730, 1771948), (1460, 885974), (2920, 442987)]