20949260

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14753}}^1$

素因数の和:14833

約数の個数: 24

約数和(自身を含む): 44616096

約数和(自身を除く): 23666836

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14753, 29506, 59012, 73765, 147530, 295060, 1047463, 2094926, 4189852, 5237315, 10474630, 20949260]

約数ペア:

[(1, 20949260), (2, 10474630), (4, 5237315), (5, 4189852), (10, 2094926), (20, 1047463), (71, 295060), (142, 147530), (284, 73765), (355, 59012), (710, 29506), (1420, 14753)]