15420445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{4219}}^1$

素因数の和:4284

約数の個数: 16

約数和(自身を含む): 20053440

約数和(自身を除く): 4632995

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 4219, 21095, 71723, 181417, 358615, 907085, 3084089, 15420445]

約数ペア:

[(1, 15420445), (5, 3084089), (17, 907085), (43, 358615), (85, 181417), (215, 71723), (731, 21095), (3655, 4219)]