161778315

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{521}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 262987776

約数和(自身を除く): 101209461

約数列:

[1, 3, 5, 15, 127, 163, 381, 489, 521, 635, 815, 1563, 1905, 2445, 2605, 7815, 20701, 62103, 66167, 84923, 103505, 198501, 254769, 310515, 330835, 424615, 992505, 1273845, 10785221, 32355663, 53926105, 161778315]

約数ペア:

[(1, 161778315), (3, 53926105), (5, 32355663), (15, 10785221), (127, 1273845), (163, 992505), (381, 424615), (489, 330835), (521, 310515), (635, 254769), (815, 198501), (1563, 103505), (1905, 84923), (2445, 66167), (2605, 62103), (7815, 20701)]