204238640

素因数分解:

$2^4\times 5^1\times {\mathrm{2552983}}^1$

素因数の和:2552996

約数の個数: 20

約数和(自身を含む): 474855024

約数和(自身を除く): 270616384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2552983, 5105966, 10211932, 12764915, 20423864, 25529830, 40847728, 51059660, 102119320, 204238640]

約数ペア:

[(1, 204238640), (2, 102119320), (4, 51059660), (5, 40847728), (8, 25529830), (10, 20423864), (16, 12764915), (20, 10211932), (40, 5105966), (80, 2552983)]