129431380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{497813}}^1$

素因数の和:497835

約数の個数: 24

約数和(自身を含む): 292714632

約数和(自身を除く): 163283252

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 497813, 995626, 1991252, 2489065, 4978130, 6471569, 9956260, 12943138, 25886276, 32357845, 64715690, 129431380]

約数ペア:

[(1, 129431380), (2, 64715690), (4, 32357845), (5, 25886276), (10, 12943138), (13, 9956260), (20, 6471569), (26, 4978130), (52, 2489065), (65, 1991252), (130, 995626), (260, 497813)]