2169925

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:153

約数の個数: 24

約数和(自身を含む): 2890440

約数和(自身を除く): 720515

約数列:

[1, 5, 25, 29, 41, 73, 145, 205, 365, 725, 1025, 1189, 1825, 2117, 2993, 5945, 10585, 14965, 29725, 52925, 74825, 86797, 433985, 2169925]

約数ペア:

[(1, 2169925), (5, 433985), (25, 86797), (29, 74825), (41, 52925), (73, 29725), (145, 14965), (205, 10585), (365, 5945), (725, 2993), (1025, 2117), (1189, 1825)]