28427145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2719}}^1$

素因数の和:2785

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 20924535

約数列:

[1, 3, 5, 15, 17, 41, 51, 85, 123, 205, 255, 615, 697, 2091, 2719, 3485, 8157, 10455, 13595, 40785, 46223, 111479, 138669, 231115, 334437, 557395, 693345, 1672185, 1895143, 5685429, 9475715, 28427145]

約数ペア:

[(1, 28427145), (3, 9475715), (5, 5685429), (15, 1895143), (17, 1672185), (41, 693345), (51, 557395), (85, 334437), (123, 231115), (205, 138669), (255, 111479), (615, 46223), (697, 40785), (2091, 13595), (2719, 10455), (3485, 8157)]