20480075

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10639}}^1$

素因数の和:10667

約数の個数: 24

約数和(自身を含む): 31664640

約数和(自身を除く): 11184565

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 10639, 53195, 74473, 117029, 265975, 372365, 585145, 819203, 1861825, 2925725, 4096015, 20480075]

約数ペア:

[(1, 20480075), (5, 4096015), (7, 2925725), (11, 1861825), (25, 819203), (35, 585145), (55, 372365), (77, 265975), (175, 117029), (275, 74473), (385, 53195), (1925, 10639)]