20528748160

素因数分解:

$2^7\times 5^1\times {\mathrm{32076169}}^1$

素因数の和:32076188

約数の個数: 32

約数和(自身を含む): 49076540100

約数和(自身を除く): 28547791940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 32076169, 64152338, 128304676, 160380845, 256609352, 320761690, 513218704, 641523380, 1026437408, 1283046760, 2052874816, 2566093520, 4105749632, 5132187040, 10264374080, 20528748160]

約数ペア:

[(1, 20528748160), (2, 10264374080), (4, 5132187040), (5, 4105749632), (8, 2566093520), (10, 2052874816), (16, 1283046760), (20, 1026437408), (32, 641523380), (40, 513218704), (64, 320761690), (80, 256609352), (128, 160380845), (160, 128304676), (320, 64152338), (640, 32076169)]