209449968005

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{9919487}}^1$

素因数の和:9919636

約数の個数: 16

約数和(自身を含む): 259969941504

約数和(自身を除く): 50519973499

約数列:

[1, 5, 41, 103, 205, 515, 4223, 21115, 9919487, 49597435, 406698967, 1021707161, 2033494835, 5108535805, 41889993601, 209449968005]

約数ペア:

[(1, 209449968005), (5, 41889993601), (41, 5108535805), (103, 2033494835), (205, 1021707161), (515, 406698967), (4223, 49597435), (21115, 9919487)]