20538337535

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{801809}}^1$

素因数の和:801970

約数の個数: 16

約数和(自身を含む): 25401340800

約数和(自身を除く): 4863003265

約数列:

[1, 5, 47, 109, 235, 545, 5123, 25615, 801809, 4009045, 37685023, 87397181, 188425115, 436985905, 4107667507, 20538337535]

約数ペア:

[(1, 20538337535), (5, 4107667507), (47, 436985905), (109, 188425115), (235, 87397181), (545, 37685023), (5123, 4009045), (25615, 801809)]