200022020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{3457}}^1$

素因数の和:3740

約数の個数: 48

約数和(自身を含む): 460107648

約数和(自身を除く): 260085628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 263, 526, 1052, 1315, 2630, 2893, 3457, 5260, 5786, 6914, 11572, 13828, 14465, 17285, 28930, 34570, 38027, 57860, 69140, 76054, 152108, 190135, 380270, 760540, 909191, 1818382, 3636764, 4545955, 9091910, 10001101, 18183820, 20002202, 40004404, 50005505, 100011010, 200022020]

約数ペア:

[(1, 200022020), (2, 100011010), (4, 50005505), (5, 40004404), (10, 20002202), (11, 18183820), (20, 10001101), (22, 9091910), (44, 4545955), (55, 3636764), (110, 1818382), (220, 909191), (263, 760540), (526, 380270), (1052, 190135), (1315, 152108), (2630, 76054), (2893, 69140), (3457, 57860), (5260, 38027), (5786, 34570), (6914, 28930), (11572, 17285), (13828, 14465)]