72657940

素因数分解:

$2^2\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{2801}}^1$

素因数の和:4107

約数の個数: 24

約数和(自身を含む): 152753832

約数和(自身を除く): 80095892

約数列:

[1, 2, 4, 5, 10, 20, 1297, 2594, 2801, 5188, 5602, 6485, 11204, 12970, 14005, 25940, 28010, 56020, 3632897, 7265794, 14531588, 18164485, 36328970, 72657940]

約数ペア:

[(1, 72657940), (2, 36328970), (4, 18164485), (5, 14531588), (10, 7265794), (20, 3632897), (1297, 56020), (2594, 28010), (2801, 25940), (5188, 14005), (5602, 12970), (6485, 11204)]