20592580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1153}}^1$

素因数の和:1228

約数の個数: 48

約数和(自身を含む): 46529280

約数和(自身を除く): 25936700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1153, 1786, 2306, 3572, 4465, 4612, 5765, 8930, 11530, 17860, 21907, 23060, 43814, 54191, 87628, 108382, 109535, 216764, 219070, 270955, 438140, 541910, 1029629, 1083820, 2059258, 4118516, 5148145, 10296290, 20592580]

約数ペア:

[(1, 20592580), (2, 10296290), (4, 5148145), (5, 4118516), (10, 2059258), (19, 1083820), (20, 1029629), (38, 541910), (47, 438140), (76, 270955), (94, 219070), (95, 216764), (188, 109535), (190, 108382), (235, 87628), (380, 54191), (470, 43814), (893, 23060), (940, 21907), (1153, 17860), (1786, 11530), (2306, 8930), (3572, 5765), (4465, 4612)]