28428765

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{283}}^1$

素因数の和:509

約数の個数: 32

約数和(自身を含む): 47139456

約数和(自身を除く): 18710691

約数列:

[1, 3, 5, 15, 37, 111, 181, 185, 283, 543, 555, 849, 905, 1415, 2715, 4245, 6697, 10471, 20091, 31413, 33485, 51223, 52355, 100455, 153669, 157065, 256115, 768345, 1895251, 5685753, 9476255, 28428765]

約数ペア:

[(1, 28428765), (3, 9476255), (5, 5685753), (15, 1895251), (37, 768345), (111, 256115), (181, 157065), (185, 153669), (283, 100455), (543, 52355), (555, 51223), (849, 33485), (905, 31413), (1415, 20091), (2715, 10471), (4245, 6697)]