128021205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{656519}}^1$

素因数の和:656540

約数の個数: 16

約数和(自身を含む): 220590720

約数和(自身を除く): 92569515

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 656519, 1969557, 3282595, 8534747, 9847785, 25604241, 42673735, 128021205]

約数ペア:

[(1, 128021205), (3, 42673735), (5, 25604241), (13, 9847785), (15, 8534747), (39, 3282595), (65, 1969557), (195, 656519)]