28100865

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2719}}^1$

素因数の和:2793

約数の個数: 32

約数和(自身を含む): 49351680

約数和(自身を除く): 21250815

約数列:

[1, 3, 5, 13, 15, 39, 53, 65, 159, 195, 265, 689, 795, 2067, 2719, 3445, 8157, 10335, 13595, 35347, 40785, 106041, 144107, 176735, 432321, 530205, 720535, 1873391, 2161605, 5620173, 9366955, 28100865]

約数ペア:

[(1, 28100865), (3, 9366955), (5, 5620173), (13, 2161605), (15, 1873391), (39, 720535), (53, 530205), (65, 432321), (159, 176735), (195, 144107), (265, 106041), (689, 40785), (795, 35347), (2067, 13595), (2719, 10335), (3445, 8157)]