28385480

素因数分解:

$2^3\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1039}}^1$

素因数の和:1733

約数の個数: 32

約数和(自身を含む): 64022400

約数和(自身を除く): 35636920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 683, 1039, 1366, 2078, 2732, 3415, 4156, 5195, 5464, 6830, 8312, 10390, 13660, 20780, 27320, 41560, 709637, 1419274, 2838548, 3548185, 5677096, 7096370, 14192740, 28385480]

約数ペア:

[(1, 28385480), (2, 14192740), (4, 7096370), (5, 5677096), (8, 3548185), (10, 2838548), (20, 1419274), (40, 709637), (683, 41560), (1039, 27320), (1366, 20780), (2078, 13660), (2732, 10390), (3415, 8312), (4156, 6830), (5195, 5464)]