1389913490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{19855907}}^1$

素因数の和:19855921

約数の個数: 16

約数和(自身を含む): 2859250752

約数和(自身を除く): 1469337262

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 19855907, 39711814, 99279535, 138991349, 198559070, 277982698, 694956745, 1389913490]

約数ペア:

[(1, 1389913490), (2, 694956745), (5, 277982698), (7, 198559070), (10, 138991349), (14, 99279535), (35, 39711814), (70, 19855907)]