28243480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{22777}}^1$

素因数の和:22819

約数の個数: 32

約数和(自身を含む): 65600640

約数和(自身を除く): 37357160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 22777, 45554, 91108, 113885, 182216, 227770, 455540, 706087, 911080, 1412174, 2824348, 3530435, 5648696, 7060870, 14121740, 28243480]

約数ペア:

[(1, 28243480), (2, 14121740), (4, 7060870), (5, 5648696), (8, 3530435), (10, 2824348), (20, 1412174), (31, 911080), (40, 706087), (62, 455540), (124, 227770), (155, 182216), (248, 113885), (310, 91108), (620, 45554), (1240, 22777)]