28703320

素因数分解:

$2^3\times 5^1\times {\mathrm{809}}^1\times {\mathrm{887}}^1$

素因数の和:1707

約数の個数: 32

約数和(自身を含む): 64735200

約数和(自身を除く): 36031880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 809, 887, 1618, 1774, 3236, 3548, 4045, 4435, 6472, 7096, 8090, 8870, 16180, 17740, 32360, 35480, 717583, 1435166, 2870332, 3587915, 5740664, 7175830, 14351660, 28703320]

約数ペア:

[(1, 28703320), (2, 14351660), (4, 7175830), (5, 5740664), (8, 3587915), (10, 2870332), (20, 1435166), (40, 717583), (809, 35480), (887, 32360), (1618, 17740), (1774, 16180), (3236, 8870), (3548, 8090), (4045, 7096), (4435, 6472)]