388950025

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{5639}}^1$

素因数の和:5769

約数の個数: 24

約数和(自身を含む): 503539200

約数和(自身を除く): 114589175

約数列:

[1, 5, 25, 31, 89, 155, 445, 775, 2225, 2759, 5639, 13795, 28195, 68975, 140975, 174809, 501871, 874045, 2509355, 4370225, 12546775, 15558001, 77790005, 388950025]

約数ペア:

[(1, 388950025), (5, 77790005), (25, 15558001), (31, 12546775), (89, 4370225), (155, 2509355), (445, 874045), (775, 501871), (2225, 174809), (2759, 140975), (5639, 68975), (13795, 28195)]