1380780002

素因数分解:

$2^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{921749}}^1$

素因数の和:921865

約数の個数: 16

約数和(自身を含む): 2389176000

約数和(自身を除く): 1008395998

約数列:

[1, 2, 7, 14, 107, 214, 749, 1498, 921749, 1843498, 6452243, 12904486, 98627143, 197254286, 690390001, 1380780002]

約数ペア:

[(1, 1380780002), (2, 690390001), (7, 197254286), (14, 98627143), (107, 12904486), (214, 6452243), (749, 1843498), (1498, 921749)]