16730225

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{197}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 21605760

約数和(自身を除く): 4875535

約数列:

[1, 5, 25, 43, 79, 197, 215, 395, 985, 1075, 1975, 3397, 4925, 8471, 15563, 16985, 42355, 77815, 84925, 211775, 389075, 669209, 3346045, 16730225]

約数ペア:

[(1, 16730225), (5, 3346045), (25, 669209), (43, 389075), (79, 211775), (197, 84925), (215, 77815), (395, 42355), (985, 16985), (1075, 15563), (1975, 8471), (3397, 4925)]