68779990

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{68099}}^1$

素因数の和:68207

約数の個数: 16

約数和(自身を含む): 125031600

約数和(自身を除く): 56251610

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 68099, 136198, 340495, 680990, 6877999, 13755998, 34389995, 68779990]

約数ペア:

[(1, 68779990), (2, 34389995), (5, 13755998), (10, 6877999), (101, 680990), (202, 340495), (505, 136198), (1010, 68099)]