28331440

素因数分解:

$2^4\times 5^1\times {\mathrm{354143}}^1$

素因数の和:354156

約数の個数: 20

約数和(自身を含む): 65870784

約数和(自身を除く): 37539344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354143, 708286, 1416572, 1770715, 2833144, 3541430, 5666288, 7082860, 14165720, 28331440]

約数ペア:

[(1, 28331440), (2, 14165720), (4, 7082860), (5, 5666288), (8, 3541430), (10, 2833144), (16, 1770715), (20, 1416572), (40, 708286), (80, 354143)]