20077420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{347}}^1$

素因数の和:630

約数の個数: 48

約数和(自身を含む): 46303488

約数和(自身を除く): 26226068

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 263, 347, 526, 694, 1052, 1315, 1388, 1735, 2630, 2893, 3470, 3817, 5260, 5786, 6940, 7634, 11572, 14465, 15268, 19085, 28930, 38170, 57860, 76340, 91261, 182522, 365044, 456305, 912610, 1003871, 1825220, 2007742, 4015484, 5019355, 10038710, 20077420]

約数ペア:

[(1, 20077420), (2, 10038710), (4, 5019355), (5, 4015484), (10, 2007742), (11, 1825220), (20, 1003871), (22, 912610), (44, 456305), (55, 365044), (110, 182522), (220, 91261), (263, 76340), (347, 57860), (526, 38170), (694, 28930), (1052, 19085), (1315, 15268), (1388, 14465), (1735, 11572), (2630, 7634), (2893, 6940), (3470, 5786), (3817, 5260)]