87667780

素因数分解:

$2^2\times 5^1\times {\mathrm{4383389}}^1$

素因数の和:4383398

約数の個数: 12

約数和(自身を含む): 184102380

約数和(自身を除く): 96434600

約数列:

[1, 2, 4, 5, 10, 20, 4383389, 8766778, 17533556, 21916945, 43833890, 87667780]

約数ペア:

[(1, 87667780), (2, 43833890), (4, 21916945), (5, 17533556), (10, 8766778), (20, 4383389)]