19791790

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{349}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 36741600

約数和(自身を除く): 16949810

約数列:

[1, 2, 5, 10, 53, 106, 107, 214, 265, 349, 530, 535, 698, 1070, 1745, 3490, 5671, 11342, 18497, 28355, 36994, 37343, 56710, 74686, 92485, 184970, 186715, 373430, 1979179, 3958358, 9895895, 19791790]

約数ペア:

[(1, 19791790), (2, 9895895), (5, 3958358), (10, 1979179), (53, 373430), (106, 186715), (107, 184970), (214, 92485), (265, 74686), (349, 56710), (530, 37343), (535, 36994), (698, 28355), (1070, 18497), (1745, 11342), (3490, 5671)]