239266120

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{15377}}^1$

素因数の和:15777

約数の個数: 32

約数和(自身を含む): 539767800

約数和(自身を除く): 300501680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 15377, 15560, 30754, 61508, 76885, 123016, 153770, 307540, 615080, 5981653, 11963306, 23926612, 29908265, 47853224, 59816530, 119633060, 239266120]

約数ペア:

[(1, 239266120), (2, 119633060), (4, 59816530), (5, 47853224), (8, 29908265), (10, 23926612), (20, 11963306), (40, 5981653), (389, 615080), (778, 307540), (1556, 153770), (1945, 123016), (3112, 76885), (3890, 61508), (7780, 30754), (15377, 15560)]