219873590

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{278321}}^1$

素因数の和:278407

約数の個数: 16

約数和(自身を含む): 400783680

約数和(自身を除く): 180910090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 278321, 556642, 1391605, 2783210, 21987359, 43974718, 109936795, 219873590]

約数ペア:

[(1, 219873590), (2, 109936795), (5, 43974718), (10, 21987359), (79, 2783210), (158, 1391605), (395, 556642), (790, 278321)]