78303920

素因数分解:

$2^4\times 5^1\times {\mathrm{978799}}^1$

素因数の和:978812

約数の個数: 20

約数和(自身を含む): 182056800

約数和(自身を除く): 103752880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 978799, 1957598, 3915196, 4893995, 7830392, 9787990, 15660784, 19575980, 39151960, 78303920]

約数ペア:

[(1, 78303920), (2, 39151960), (4, 19575980), (5, 15660784), (8, 9787990), (10, 7830392), (16, 4893995), (20, 3915196), (40, 1957598), (80, 978799)]