128440315

素因数分解:

$5^1\times {\mathrm{181}}^1\times {\mathrm{347}}^1\times {\mathrm{409}}^1$

素因数の和:942

約数の個数: 16

約数和(自身を含む): 155806560

約数和(自身を除く): 27366245

約数列:

[1, 5, 181, 347, 409, 905, 1735, 2045, 62807, 74029, 141923, 314035, 370145, 709615, 25688063, 128440315]

約数ペア:

[(1, 128440315), (5, 25688063), (181, 709615), (347, 370145), (409, 314035), (905, 141923), (1735, 74029), (2045, 62807)]