19710145880

素因数分解:

$2^3\times 5^1\times {\mathrm{492753647}}^1$

素因数の和:492753658

約数の個数: 16

約数和(自身を含む): 44347828320

約数和(自身を除く): 24637682440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 492753647, 985507294, 1971014588, 2463768235, 3942029176, 4927536470, 9855072940, 19710145880]

約数ペア:

[(1, 19710145880), (2, 9855072940), (4, 4927536470), (5, 3942029176), (8, 2463768235), (10, 1971014588), (20, 985507294), (40, 492753647)]