158273680

素因数分解:

$2^4\times 5^1\times {\mathrm{1978421}}^1$

素因数の和:1978434

約数の個数: 20

約数和(自身を含む): 367986492

約数和(自身を除く): 209712812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1978421, 3956842, 7913684, 9892105, 15827368, 19784210, 31654736, 39568420, 79136840, 158273680]

約数ペア:

[(1, 158273680), (2, 79136840), (4, 39568420), (5, 31654736), (8, 19784210), (10, 15827368), (16, 9892105), (20, 7913684), (40, 3956842), (80, 1978421)]