20921450170

素因数分解:

$2^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1481}}^1\times {\mathrm{10163}}^1$

素因数の和:11790

約数の個数: 32

約数和(自身を含む): 37958880960

約数和(自身を除く): 17037430790

約数列:

[1, 2, 5, 10, 139, 278, 695, 1390, 1481, 2962, 7405, 10163, 14810, 20326, 50815, 101630, 205859, 411718, 1029295, 1412657, 2058590, 2825314, 7063285, 14126570, 15051403, 30102806, 75257015, 150514030, 2092145017, 4184290034, 10460725085, 20921450170]

約数ペア:

[(1, 20921450170), (2, 10460725085), (5, 4184290034), (10, 2092145017), (139, 150514030), (278, 75257015), (695, 30102806), (1390, 15051403), (1481, 14126570), (2962, 7063285), (7405, 2825314), (10163, 2058590), (14810, 1412657), (20326, 1029295), (50815, 411718), (101630, 205859)]