20236144

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{439}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 40810880

約数和(自身を除く): 20574736

約数列:

[1, 2, 4, 8, 16, 43, 67, 86, 134, 172, 268, 344, 439, 536, 688, 878, 1072, 1756, 2881, 3512, 5762, 7024, 11524, 18877, 23048, 29413, 37754, 46096, 58826, 75508, 117652, 151016, 235304, 302032, 470608, 1264759, 2529518, 5059036, 10118072, 20236144]

約数ペア:

[(1, 20236144), (2, 10118072), (4, 5059036), (8, 2529518), (16, 1264759), (43, 470608), (67, 302032), (86, 235304), (134, 151016), (172, 117652), (268, 75508), (344, 58826), (439, 46096), (536, 37754), (688, 29413), (878, 23048), (1072, 18877), (1756, 11524), (2881, 7024), (3512, 5762)]