2118108400

素因数分解:

$2^4\times 5^2\times {\mathrm{661}}^1\times {\mathrm{8011}}^1$

素因数の和:8690

約数の個数: 60

約数和(自身を含む): 5097090184

約数和(自身を除く): 2978981784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 661, 1322, 2644, 3305, 5288, 6610, 8011, 10576, 13220, 16022, 16525, 26440, 32044, 33050, 40055, 52880, 64088, 66100, 80110, 128176, 132200, 160220, 200275, 264400, 320440, 400550, 640880, 801100, 1602200, 3204400, 5295271, 10590542, 21181084, 26476355, 42362168, 52952710, 84724336, 105905420, 132381775, 211810840, 264763550, 423621680, 529527100, 1059054200, 2118108400]

約数ペア:

[(1, 2118108400), (2, 1059054200), (4, 529527100), (5, 423621680), (8, 264763550), (10, 211810840), (16, 132381775), (20, 105905420), (25, 84724336), (40, 52952710), (50, 42362168), (80, 26476355), (100, 21181084), (200, 10590542), (400, 5295271), (661, 3204400), (1322, 1602200), (2644, 801100), (3305, 640880), (5288, 400550), (6610, 320440), (8011, 264400), (10576, 200275), (13220, 160220), (16022, 132200), (16525, 128176), (26440, 80110), (32044, 66100), (33050, 64088), (40055, 52880)]