4387880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{15671}}^1$

素因数の和:15689

約数の個数: 32

約数和(自身を含む): 11283840

約数和(自身を除く): 6895960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 15671, 31342, 62684, 78355, 109697, 125368, 156710, 219394, 313420, 438788, 548485, 626840, 877576, 1096970, 2193940, 4387880]

約数ペア:

[(1, 4387880), (2, 2193940), (4, 1096970), (5, 877576), (7, 626840), (8, 548485), (10, 438788), (14, 313420), (20, 219394), (28, 156710), (35, 125368), (40, 109697), (56, 78355), (70, 62684), (140, 31342), (280, 15671)]