4070225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 5466168

約数和(自身を除く): 1395943

約数列:

[1, 5, 17, 25, 61, 85, 157, 305, 425, 785, 1037, 1525, 2669, 3925, 5185, 9577, 13345, 25925, 47885, 66725, 162809, 239425, 814045, 4070225]

約数ペア:

[(1, 4070225), (5, 814045), (17, 239425), (25, 162809), (61, 66725), (85, 47885), (157, 25925), (305, 13345), (425, 9577), (785, 5185), (1037, 3925), (1525, 2669)]