81518025

素因数分解:

$3^1\times 5^2\times {\mathrm{131}}^1\times {\mathrm{8297}}^1$

素因数の和:8441

約数の個数: 24

約数和(自身を含む): 135821664

約数和(自身を除く): 54303639

約数列:

[1, 3, 5, 15, 25, 75, 131, 393, 655, 1965, 3275, 8297, 9825, 24891, 41485, 124455, 207425, 622275, 1086907, 3260721, 5434535, 16303605, 27172675, 81518025]

約数ペア:

[(1, 81518025), (3, 27172675), (5, 16303605), (15, 5434535), (25, 3260721), (75, 1086907), (131, 622275), (393, 207425), (655, 124455), (1965, 41485), (3275, 24891), (8297, 9825)]