209519435

素因数分解:

$5^1\times {\mathrm{43}}^2\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:395

約数の個数: 24

約数和(自身を含む): 260870544

約数和(自身を除く): 51351109

約数列:

[1, 5, 43, 131, 173, 215, 655, 865, 1849, 5633, 7439, 9245, 22663, 28165, 37195, 113315, 242219, 319877, 974509, 1211095, 1599385, 4872545, 41903887, 209519435]

約数ペア:

[(1, 209519435), (5, 41903887), (43, 4872545), (131, 1599385), (173, 1211095), (215, 974509), (655, 319877), (865, 242219), (1849, 113315), (5633, 37195), (7439, 28165), (9245, 22663)]