158397880

素因数分解:

$2^3\times 5^1\times {\mathrm{3959947}}^1$

素因数の和:3959958

約数の個数: 16

約数和(自身を含む): 356395320

約数和(自身を除く): 197997440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3959947, 7919894, 15839788, 19799735, 31679576, 39599470, 79198940, 158397880]

約数ペア:

[(1, 158397880), (2, 79198940), (4, 39599470), (5, 31679576), (8, 19799735), (10, 15839788), (20, 7919894), (40, 3959947)]