20125955

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{439}}^1$

素因数の和:670

約数の個数: 16

約数和(自身を含む): 24805440

約数和(自身を除く): 4679485

約数列:

[1, 5, 53, 173, 265, 439, 865, 2195, 9169, 23267, 45845, 75947, 116335, 379735, 4025191, 20125955]

約数ペア:

[(1, 20125955), (5, 4025191), (53, 379735), (173, 116335), (265, 75947), (439, 45845), (865, 23267), (2195, 9169)]