27990470

素因数分解:

$2^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{20431}}^1$

素因数の和:20575

約数の個数: 16

約数和(自身を含む): 50753088

約数和(自身を除く): 22762618

約数列:

[1, 2, 5, 10, 137, 274, 685, 1370, 20431, 40862, 102155, 204310, 2799047, 5598094, 13995235, 27990470]

約数ペア:

[(1, 27990470), (2, 13995235), (5, 5598094), (10, 2799047), (137, 204310), (274, 102155), (685, 40862), (1370, 20431)]