217177545

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{1549}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 374976000

約数和(自身を除く): 157798455

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 719, 1549, 2157, 3595, 4647, 7745, 9347, 10785, 20137, 23235, 28041, 46735, 60411, 100685, 140205, 302055, 1113731, 3341193, 5568655, 14478503, 16705965, 43435509, 72392515, 217177545]

約数ペア:

[(1, 217177545), (3, 72392515), (5, 43435509), (13, 16705965), (15, 14478503), (39, 5568655), (65, 3341193), (195, 1113731), (719, 302055), (1549, 140205), (2157, 100685), (3595, 60411), (4647, 46735), (7745, 28041), (9347, 23235), (10785, 20137)]