28510840

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{5441}}^1$

素因数の和:5583

約数の個数: 32

約数和(自身を含む): 64650960

約数和(自身を除く): 36140120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 5441, 10882, 21764, 27205, 43528, 54410, 108820, 217640, 712771, 1425542, 2851084, 3563855, 5702168, 7127710, 14255420, 28510840]

約数ペア:

[(1, 28510840), (2, 14255420), (4, 7127710), (5, 5702168), (8, 3563855), (10, 2851084), (20, 1425542), (40, 712771), (131, 217640), (262, 108820), (524, 54410), (655, 43528), (1048, 27205), (1310, 21764), (2620, 10882), (5240, 5441)]