78471760

素因数分解:

$2^4\times 5^1\times {\mathrm{980897}}^1$

素因数の和:980910

約数の個数: 20

約数和(自身を含む): 182447028

約数和(自身を除く): 103975268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 980897, 1961794, 3923588, 4904485, 7847176, 9808970, 15694352, 19617940, 39235880, 78471760]

約数ペア:

[(1, 78471760), (2, 39235880), (4, 19617940), (5, 15694352), (8, 9808970), (10, 7847176), (16, 4904485), (20, 3923588), (40, 1961794), (80, 980897)]