6561920

素因数分解:

$2^7\times 5^1\times {\mathrm{10253}}^1$

素因数の和:10272

約数の個数: 32

約数和(自身を含む): 15688620

約数和(自身を除く): 9126700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 10253, 20506, 41012, 51265, 82024, 102530, 164048, 205060, 328096, 410120, 656192, 820240, 1312384, 1640480, 3280960, 6561920]

約数ペア:

[(1, 6561920), (2, 3280960), (4, 1640480), (5, 1312384), (8, 820240), (10, 656192), (16, 410120), (20, 328096), (32, 205060), (40, 164048), (64, 102530), (80, 82024), (128, 51265), (160, 41012), (320, 20506), (640, 10253)]