20002255

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43961}}^1$

素因数の和:43986

約数の個数: 16

約数和(自身を含む): 29542464

約数和(自身を除く): 9540209

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 43961, 219805, 307727, 571493, 1538635, 2857465, 4000451, 20002255]

約数ペア:

[(1, 20002255), (5, 4000451), (7, 2857465), (13, 1538635), (35, 571493), (65, 307727), (91, 219805), (455, 43961)]