209722715

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{3163}}^1$

素因数の和:3406

約数の個数: 16

約数和(自身を含む): 256284000

約数和(自身を除く): 46561285

約数列:

[1, 5, 89, 149, 445, 745, 3163, 13261, 15815, 66305, 281507, 471287, 1407535, 2356435, 41944543, 209722715]

約数ペア:

[(1, 209722715), (5, 41944543), (89, 2356435), (149, 1407535), (445, 471287), (745, 281507), (3163, 66305), (13261, 15815)]