221769580

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{55721}}^1$

素因数の和:55929

約数の個数: 24

約数和(自身を含む): 468064800

約数和(自身を除く): 246295220

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 55721, 111442, 222884, 278605, 557210, 1114420, 11088479, 22176958, 44353916, 55442395, 110884790, 221769580]

約数ペア:

[(1, 221769580), (2, 110884790), (4, 55442395), (5, 44353916), (10, 22176958), (20, 11088479), (199, 1114420), (398, 557210), (796, 278605), (995, 222884), (1990, 111442), (3980, 55721)]