28154945

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61879}}^1$

素因数の和:61904

約数の個数: 16

約数和(自身を含む): 41583360

約数和(自身を除く): 13428415

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 61879, 309395, 433153, 804427, 2165765, 4022135, 5630989, 28154945]

約数ペア:

[(1, 28154945), (5, 5630989), (7, 4022135), (13, 2165765), (35, 804427), (65, 433153), (91, 309395), (455, 61879)]