78021490

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{77249}}^1$

素因数の和:77357

約数の個数: 16

約数和(自身を含む): 141831000

約数和(自身を除く): 63809510

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 77249, 154498, 386245, 772490, 7802149, 15604298, 39010745, 78021490]

約数ペア:

[(1, 78021490), (2, 39010745), (5, 15604298), (10, 7802149), (101, 772490), (202, 386245), (505, 154498), (1010, 77249)]