28581040

素因数分解:

$2^4\times 5^1\times {\mathrm{357263}}^1$

素因数の和:357276

約数の個数: 20

約数和(自身を含む): 66451104

約数和(自身を除く): 37870064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 357263, 714526, 1429052, 1786315, 2858104, 3572630, 5716208, 7145260, 14290520, 28581040]

約数ペア:

[(1, 28581040), (2, 14290520), (4, 7145260), (5, 5716208), (8, 3572630), (10, 2858104), (16, 1786315), (20, 1429052), (40, 714526), (80, 357263)]