156923920

素因数分解:

$2^4\times 5^1\times {\mathrm{1961549}}^1$

素因数の和:1961562

約数の個数: 20

約数和(自身を含む): 364848300

約数和(自身を除く): 207924380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1961549, 3923098, 7846196, 9807745, 15692392, 19615490, 31384784, 39230980, 78461960, 156923920]

約数ペア:

[(1, 156923920), (2, 78461960), (4, 39230980), (5, 31384784), (8, 19615490), (10, 15692392), (16, 9807745), (20, 7846196), (40, 3923098), (80, 1961549)]