20290081384

素因数分解:

$2^3\times {\mathrm{2557}}^1\times {\mathrm{991889}}^1$

素因数の和:994452

約数の個数: 16

約数和(自身を含む): 38058819300

約数和(自身を除く): 17768737916

約数列:

[1, 2, 4, 8, 2557, 5114, 10228, 20456, 991889, 1983778, 3967556, 7935112, 2536260173, 5072520346, 10145040692, 20290081384]

約数ペア:

[(1, 20290081384), (2, 10145040692), (4, 5072520346), (8, 2536260173), (2557, 7935112), (5114, 3967556), (10228, 1983778), (20456, 991889)]