20159945

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6599}}^1$

素因数の和:6664

約数の個数: 16

約数和(自身を含む): 26611200

約数和(自身を除く): 6451255

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6599, 32995, 85787, 310153, 428935, 1550765, 4031989, 20159945]

約数ペア:

[(1, 20159945), (5, 4031989), (13, 1550765), (47, 428935), (65, 310153), (235, 85787), (611, 32995), (3055, 6599)]