19992870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{1151}}^1$

素因数の和:1357

約数の個数: 48

約数和(自身を含む): 52296192

約数和(自身を除く): 32303322

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 193, 386, 579, 965, 1151, 1158, 1737, 1930, 2302, 2895, 3453, 3474, 5755, 5790, 6906, 8685, 10359, 11510, 17265, 17370, 20718, 34530, 51795, 103590, 222143, 444286, 666429, 1110715, 1332858, 1999287, 2221430, 3332145, 3998574, 6664290, 9996435, 19992870]

約数ペア:

[(1, 19992870), (2, 9996435), (3, 6664290), (5, 3998574), (6, 3332145), (9, 2221430), (10, 1999287), (15, 1332858), (18, 1110715), (30, 666429), (45, 444286), (90, 222143), (193, 103590), (386, 51795), (579, 34530), (965, 20718), (1151, 17370), (1158, 17265), (1737, 11510), (1930, 10359), (2302, 8685), (2895, 6906), (3453, 5790), (3474, 5755)]