209244425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^2$

素因数の和:350

約数の個数: 36

約数和(自身を含む): 291010020

約数和(自身を除く): 81765595

約数列:

[1, 5, 13, 25, 29, 65, 145, 149, 325, 377, 725, 745, 1885, 1937, 3725, 4321, 9425, 9685, 21605, 22201, 48425, 56173, 108025, 111005, 280865, 288613, 555025, 643829, 1404325, 1443065, 3219145, 7215325, 8369777, 16095725, 41848885, 209244425]

約数ペア:

[(1, 209244425), (5, 41848885), (13, 16095725), (25, 8369777), (29, 7215325), (65, 3219145), (145, 1443065), (149, 1404325), (325, 643829), (377, 555025), (725, 288613), (745, 280865), (1885, 111005), (1937, 108025), (3725, 56173), (4321, 48425), (9425, 22201), (9685, 21605)]