2007997900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{3761}}^1$

素因数の和:4075

約数の個数: 72

約数和(自身を含む): 4604236560

約数和(自身を除く): 2596238660

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 281, 380, 475, 562, 950, 1124, 1405, 1900, 2810, 3761, 5339, 5620, 7025, 7522, 10678, 14050, 15044, 18805, 21356, 26695, 28100, 37610, 53390, 71459, 75220, 94025, 106780, 133475, 142918, 188050, 266950, 285836, 357295, 376100, 533900, 714590, 1056841, 1429180, 1786475, 2113682, 3572950, 4227364, 5284205, 7145900, 10568410, 20079979, 21136820, 26421025, 40159958, 52842050, 80319916, 100399895, 105684100, 200799790, 401599580, 501999475, 1003998950, 2007997900]

約数ペア:

[(1, 2007997900), (2, 1003998950), (4, 501999475), (5, 401599580), (10, 200799790), (19, 105684100), (20, 100399895), (25, 80319916), (38, 52842050), (50, 40159958), (76, 26421025), (95, 21136820), (100, 20079979), (190, 10568410), (281, 7145900), (380, 5284205), (475, 4227364), (562, 3572950), (950, 2113682), (1124, 1786475), (1405, 1429180), (1900, 1056841), (2810, 714590), (3761, 533900), (5339, 376100), (5620, 357295), (7025, 285836), (7522, 266950), (10678, 188050), (14050, 142918), (15044, 133475), (18805, 106780), (21356, 94025), (26695, 75220), (28100, 71459), (37610, 53390)]