28707940

素因数分解:

$2^2\times 5^1\times {\mathrm{797}}^1\times {\mathrm{1801}}^1$

素因数の和:2607

約数の個数: 24

約数和(自身を含む): 60395832

約数和(自身を除く): 31687892

約数列:

[1, 2, 4, 5, 10, 20, 797, 1594, 1801, 3188, 3602, 3985, 7204, 7970, 9005, 15940, 18010, 36020, 1435397, 2870794, 5741588, 7176985, 14353970, 28707940]

約数ペア:

[(1, 28707940), (2, 14353970), (4, 7176985), (5, 5741588), (10, 2870794), (20, 1435397), (797, 36020), (1594, 18010), (1801, 15940), (3188, 9005), (3602, 7970), (3985, 7204)]