20187864

素因数分解:

$2^3\times 3^2\times {\mathrm{257}}^1\times {\mathrm{1091}}^1$

素因数の和:1360

約数の個数: 48

約数和(自身を含む): 54938520

約数和(自身を除く): 34750656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 257, 514, 771, 1028, 1091, 1542, 2056, 2182, 2313, 3084, 3273, 4364, 4626, 6168, 6546, 8728, 9252, 9819, 13092, 18504, 19638, 26184, 39276, 78552, 280387, 560774, 841161, 1121548, 1682322, 2243096, 2523483, 3364644, 5046966, 6729288, 10093932, 20187864]

約数ペア:

[(1, 20187864), (2, 10093932), (3, 6729288), (4, 5046966), (6, 3364644), (8, 2523483), (9, 2243096), (12, 1682322), (18, 1121548), (24, 841161), (36, 560774), (72, 280387), (257, 78552), (514, 39276), (771, 26184), (1028, 19638), (1091, 18504), (1542, 13092), (2056, 9819), (2182, 9252), (2313, 8728), (3084, 6546), (3273, 6168), (4364, 4626)]