20040325

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:301

約数の個数: 24

約数和(自身を含む): 25692800

約数和(自身を除く): 5652475

約数列:

[1, 5, 25, 73, 79, 139, 365, 395, 695, 1825, 1975, 3475, 5767, 10147, 10981, 28835, 50735, 54905, 144175, 253675, 274525, 801613, 4008065, 20040325]

約数ペア:

[(1, 20040325), (5, 4008065), (25, 801613), (73, 274525), (79, 253675), (139, 144175), (365, 54905), (395, 50735), (695, 28835), (1825, 10981), (1975, 10147), (3475, 5767)]