28395705

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{653}}^1$

素因数の和:897

約数の個数: 32

約数和(自身を含む): 49222656

約数和(自身を除く): 20826951

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 223, 653, 669, 1115, 1959, 2899, 3265, 3345, 8489, 8697, 9795, 14495, 25467, 42445, 43485, 127335, 145619, 436857, 728095, 1893047, 2184285, 5679141, 9465235, 28395705]

約数ペア:

[(1, 28395705), (3, 9465235), (5, 5679141), (13, 2184285), (15, 1893047), (39, 728095), (65, 436857), (195, 145619), (223, 127335), (653, 43485), (669, 42445), (1115, 25467), (1959, 14495), (2899, 9795), (3265, 8697), (3345, 8489)]