20781281095

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{1381}}^1\times {\mathrm{27611}}^1$

素因数の和:29106

約数の個数: 16

約数和(自身を含む): 25185457440

約数和(自身を除く): 4404176345

約数列:

[1, 5, 109, 545, 1381, 6905, 27611, 138055, 150529, 752645, 3009599, 15047995, 38130791, 190653955, 4156256219, 20781281095]

約数ペア:

[(1, 20781281095), (5, 4156256219), (109, 190653955), (545, 38130791), (1381, 15047995), (6905, 3009599), (27611, 752645), (138055, 150529)]