127764400

素因数分解:

$2^4\times 5^2\times {\mathrm{319411}}^1$

素因数の和:319429

約数の個数: 30

約数和(自身を含む): 306954932

約数和(自身を除く): 179190532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 319411, 638822, 1277644, 1597055, 2555288, 3194110, 5110576, 6388220, 7985275, 12776440, 15970550, 25552880, 31941100, 63882200, 127764400]

約数ペア:

[(1, 127764400), (2, 63882200), (4, 31941100), (5, 25552880), (8, 15970550), (10, 12776440), (16, 7985275), (20, 6388220), (25, 5110576), (40, 3194110), (50, 2555288), (80, 1597055), (100, 1277644), (200, 638822), (400, 319411)]