20147802605

素因数分解:

$5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{647527}}^1$

素因数の和:647673

約数の個数: 24

約数和(自身を含む): 28346185728

約数和(自身を除く): 8198383123

約数列:

[1, 5, 7, 35, 49, 127, 245, 635, 889, 4445, 6223, 31115, 647527, 3237635, 4532689, 22663445, 31728823, 82235929, 158644115, 411179645, 575651503, 2878257515, 4029560521, 20147802605]

約数ペア:

[(1, 20147802605), (5, 4029560521), (7, 2878257515), (35, 575651503), (49, 411179645), (127, 158644115), (245, 82235929), (635, 31728823), (889, 22663445), (4445, 4532689), (6223, 3237635), (31115, 647527)]