205815695420

素因数分解:

$2^2\times 5^1\times {\mathrm{463}}^1\times {\mathrm{1097}}^1\times {\mathrm{20261}}^1$

素因数の和:21830

約数の個数: 48

約数和(自身を含む): 433562709888

約数和(自身を除く): 227747014468

約数列:

[1, 2, 4, 5, 10, 20, 463, 926, 1097, 1852, 2194, 2315, 4388, 4630, 5485, 9260, 10970, 20261, 21940, 40522, 81044, 101305, 202610, 405220, 507911, 1015822, 2031644, 2539555, 5079110, 9380843, 10158220, 18761686, 22226317, 37523372, 44452634, 46904215, 88905268, 93808430, 111131585, 187616860, 222263170, 444526340, 10290784771, 20581569542, 41163139084, 51453923855, 102907847710, 205815695420]

約数ペア:

[(1, 205815695420), (2, 102907847710), (4, 51453923855), (5, 41163139084), (10, 20581569542), (20, 10290784771), (463, 444526340), (926, 222263170), (1097, 187616860), (1852, 111131585), (2194, 93808430), (2315, 88905268), (4388, 46904215), (4630, 44452634), (5485, 37523372), (9260, 22226317), (10970, 18761686), (20261, 10158220), (21940, 9380843), (40522, 5079110), (81044, 2539555), (101305, 2031644), (202610, 1015822), (405220, 507911)]