20455372

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{1381}}^1$

素因数の和:1438

約数の個数: 36

約数和(自身を含む): 42797776

約数和(自身を除く): 22342404

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 529, 644, 1058, 1381, 2116, 2762, 3703, 5524, 7406, 9667, 14812, 19334, 31763, 38668, 63526, 127052, 222341, 444682, 730549, 889364, 1461098, 2922196, 5113843, 10227686, 20455372]

約数ペア:

[(1, 20455372), (2, 10227686), (4, 5113843), (7, 2922196), (14, 1461098), (23, 889364), (28, 730549), (46, 444682), (92, 222341), (161, 127052), (322, 63526), (529, 38668), (644, 31763), (1058, 19334), (1381, 14812), (2116, 9667), (2762, 7406), (3703, 5524)]