20168785

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2333}}^1$

素因数の和:2377

約数の個数: 32

約数和(自身を含む): 31368960

約数和(自身を除く): 11200175

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 2333, 8645, 11665, 16331, 30329, 44327, 81655, 151645, 212303, 221635, 310289, 576251, 1061515, 1551445, 2881255, 4033757, 20168785]

約数ペア:

[(1, 20168785), (5, 4033757), (7, 2881255), (13, 1551445), (19, 1061515), (35, 576251), (65, 310289), (91, 221635), (95, 212303), (133, 151645), (247, 81655), (455, 44327), (665, 30329), (1235, 16331), (1729, 11665), (2333, 8645)]