20681624

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1019}}^1$

素因数の和:1127

約数の個数: 32

約数和(自身を含む): 40392000

約数和(自身を除く): 19710376

約数列:

[1, 2, 4, 8, 43, 59, 86, 118, 172, 236, 344, 472, 1019, 2038, 2537, 4076, 5074, 8152, 10148, 20296, 43817, 60121, 87634, 120242, 175268, 240484, 350536, 480968, 2585203, 5170406, 10340812, 20681624]

約数ペア:

[(1, 20681624), (2, 10340812), (4, 5170406), (8, 2585203), (43, 480968), (59, 350536), (86, 240484), (118, 175268), (172, 120242), (236, 87634), (344, 60121), (472, 43817), (1019, 20296), (2038, 10148), (2537, 8152), (4076, 5074)]