19710100

素因数分解:

$2^2\times 5^2\times {\mathrm{197101}}^1$

素因数の和:197115

約数の個数: 18

約数和(自身を含む): 42771134

約数和(自身を除く): 23061034

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197101, 394202, 788404, 985505, 1971010, 3942020, 4927525, 9855050, 19710100]

約数ペア:

[(1, 19710100), (2, 9855050), (4, 4927525), (5, 3942020), (10, 1971010), (20, 985505), (25, 788404), (50, 394202), (100, 197101)]