20745522025

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{800213}}^1$

素因数の和:800301

約数の個数: 24

約数和(自身を含む): 27684203544

約数和(自身を除く): 6938681519

約数列:

[1, 5, 17, 25, 61, 85, 305, 425, 1037, 1525, 5185, 25925, 800213, 4001065, 13603621, 20005325, 48812993, 68018105, 244064965, 340090525, 829820881, 1220324825, 4149104405, 20745522025]

約数ペア:

[(1, 20745522025), (5, 4149104405), (17, 1220324825), (25, 829820881), (61, 340090525), (85, 244064965), (305, 68018105), (425, 48812993), (1037, 20005325), (1525, 13603621), (5185, 4001065), (25925, 800213)]