985881040

素因数分解:

$2^4\times 5^1\times {\mathrm{12323513}}^1$

素因数の和:12323526

約数の個数: 20

約数和(自身を含む): 2292173604

約数和(自身を除く): 1306292564

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12323513, 24647026, 49294052, 61617565, 98588104, 123235130, 197176208, 246470260, 492940520, 985881040]

約数ペア:

[(1, 985881040), (2, 492940520), (4, 246470260), (5, 197176208), (8, 123235130), (10, 98588104), (16, 61617565), (20, 49294052), (40, 24647026), (80, 12323513)]