278235255

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{12037}}^1$

素因数の和:12135

約数の個数: 32

約数和(自身を含む): 471504384

約数和(自身を除く): 193269129

約数列:

[1, 3, 5, 15, 23, 67, 69, 115, 201, 335, 345, 1005, 1541, 4623, 7705, 12037, 23115, 36111, 60185, 180555, 276851, 806479, 830553, 1384255, 2419437, 4032395, 4152765, 12097185, 18549017, 55647051, 92745085, 278235255]

約数ペア:

[(1, 278235255), (3, 92745085), (5, 55647051), (15, 18549017), (23, 12097185), (67, 4152765), (69, 4032395), (115, 2419437), (201, 1384255), (335, 830553), (345, 806479), (1005, 276851), (1541, 180555), (4623, 60185), (7705, 36111), (12037, 23115)]