261799275

素因数分解:

$3^1\times 5^2\times {\mathrm{251}}^1\times {\mathrm{13907}}^1$

素因数の和:14171

約数の個数: 24

約数和(自身を含む): 434597184

約数和(自身を除く): 172797909

約数列:

[1, 3, 5, 15, 25, 75, 251, 753, 1255, 3765, 6275, 13907, 18825, 41721, 69535, 208605, 347675, 1043025, 3490657, 10471971, 17453285, 52359855, 87266425, 261799275]

約数ペア:

[(1, 261799275), (3, 87266425), (5, 52359855), (15, 17453285), (25, 10471971), (75, 3490657), (251, 1043025), (753, 347675), (1255, 208605), (3765, 69535), (6275, 41721), (13907, 18825)]