790040

素因数分解:

$2^3\times 5^1\times {\mathrm{19751}}^1$

素因数の和:19762

約数の個数: 16

約数和(自身を含む): 1777680

約数和(自身を除く): 987640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 19751, 39502, 79004, 98755, 158008, 197510, 395020, 790040]

約数ペア:

[(1, 790040), (2, 395020), (4, 197510), (5, 158008), (8, 98755), (10, 79004), (20, 39502), (40, 19751)]