7215325

素因数分解:

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

素因数の和:321

約数の個数: 18

約数和(自身を含む): 9700334

約数和(自身を除く): 2485009

約数列:

[1, 5, 13, 25, 65, 149, 325, 745, 1937, 3725, 9685, 22201, 48425, 111005, 288613, 555025, 1443065, 7215325]

約数ペア:

[(1, 7215325), (5, 1443065), (13, 555025), (25, 288613), (65, 111005), (149, 48425), (325, 22201), (745, 9685), (1937, 3725)]