20389712

素因数分解:

$2^4\times 7^1\times {\mathrm{307}}^1\times {\mathrm{593}}^1$

素因数の和:915

約数の個数: 40

約数和(自身を含む): 45372096

約数和(自身を除く): 24982384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 307, 593, 614, 1186, 1228, 2149, 2372, 2456, 4151, 4298, 4744, 4912, 8302, 8596, 9488, 16604, 17192, 33208, 34384, 66416, 182051, 364102, 728204, 1274357, 1456408, 2548714, 2912816, 5097428, 10194856, 20389712]

約数ペア:

[(1, 20389712), (2, 10194856), (4, 5097428), (7, 2912816), (8, 2548714), (14, 1456408), (16, 1274357), (28, 728204), (56, 364102), (112, 182051), (307, 66416), (593, 34384), (614, 33208), (1186, 17192), (1228, 16604), (2149, 9488), (2372, 8596), (2456, 8302), (4151, 4912), (4298, 4744)]