79989985

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{1999}}^1$

素因数の和:2208

約数の個数: 16

約数和(自身を含む): 98496000

約数和(自身を除く): 18506015

約数列:

[1, 5, 53, 151, 265, 755, 1999, 8003, 9995, 40015, 105947, 301849, 529735, 1509245, 15997997, 79989985]

約数ペア:

[(1, 79989985), (5, 15997997), (53, 1509245), (151, 529735), (265, 301849), (755, 105947), (1999, 40015), (8003, 9995)]