90278140

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{28751}}^1$

素因数の和:28917

約数の個数: 24

約数和(自身を含む): 190798272

約数和(自身を除く): 100520132

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 28751, 57502, 115004, 143755, 287510, 575020, 4513907, 9027814, 18055628, 22569535, 45139070, 90278140]

約数ペア:

[(1, 90278140), (2, 45139070), (4, 22569535), (5, 18055628), (10, 9027814), (20, 4513907), (157, 575020), (314, 287510), (628, 143755), (785, 115004), (1570, 57502), (3140, 28751)]