207939495

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{19889}}^1$

素因数の和:19955

約数の個数: 32

約数和(自身を含む): 360884160

約数和(自身を除く): 152944665

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 2091, 3485, 10455, 19889, 59667, 99445, 298335, 338113, 815449, 1014339, 1690565, 2446347, 4077245, 5071695, 12231735, 13862633, 41587899, 69313165, 207939495]

約数ペア:

[(1, 207939495), (3, 69313165), (5, 41587899), (15, 13862633), (17, 12231735), (41, 5071695), (51, 4077245), (85, 2446347), (123, 1690565), (205, 1014339), (255, 815449), (615, 338113), (697, 298335), (2091, 99445), (3485, 59667), (10455, 19889)]