20123686120

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2384323}}^1$

素因数の和:2384545

約数の個数: 32

約数和(自身を含む): 45492901920

約数和(自身を除く): 25369215800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440, 2384323, 4768646, 9537292, 11921615, 19074584, 23843230, 47686460, 95372920, 503092153, 1006184306, 2012368612, 2515460765, 4024737224, 5030921530, 10061843060, 20123686120]

約数ペア:

[(1, 20123686120), (2, 10061843060), (4, 5030921530), (5, 4024737224), (8, 2515460765), (10, 2012368612), (20, 1006184306), (40, 503092153), (211, 95372920), (422, 47686460), (844, 23843230), (1055, 19074584), (1688, 11921615), (2110, 9537292), (4220, 4768646), (8440, 2384323)]