28505480

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{2957}}^1$

素因数の和:3209

約数の個数: 32

約数和(自身を含む): 64425240

約数和(自身を除く): 35919760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 2957, 4820, 5914, 9640, 11828, 14785, 23656, 29570, 59140, 118280, 712637, 1425274, 2850548, 3563185, 5701096, 7126370, 14252740, 28505480]

約数ペア:

[(1, 28505480), (2, 14252740), (4, 7126370), (5, 5701096), (8, 3563185), (10, 2850548), (20, 1425274), (40, 712637), (241, 118280), (482, 59140), (964, 29570), (1205, 23656), (1928, 14785), (2410, 11828), (2957, 9640), (4820, 5914)]