81277815

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{1697}}^1$

素因数の和:1839

約数の個数: 32

約数和(自身を含む): 135622656

約数和(自身を除く): 54344841

約数列:

[1, 3, 5, 15, 31, 93, 103, 155, 309, 465, 515, 1545, 1697, 3193, 5091, 8485, 9579, 15965, 25455, 47895, 52607, 157821, 174791, 263035, 524373, 789105, 873955, 2621865, 5418521, 16255563, 27092605, 81277815]

約数ペア:

[(1, 81277815), (3, 27092605), (5, 16255563), (15, 5418521), (31, 2621865), (93, 873955), (103, 789105), (155, 524373), (309, 263035), (465, 174791), (515, 157821), (1545, 52607), (1697, 47895), (3193, 25455), (5091, 15965), (8485, 9579)]