20778049215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{545141}}^1$

素因数の和:545181

約数の個数: 72

約数和(自身を含む): 45242424864

約数和(自身を除く): 24464375649

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 121, 165, 231, 315, 363, 385, 495, 605, 693, 847, 1089, 1155, 1815, 2541, 3465, 4235, 5445, 7623, 12705, 38115, 545141, 1635423, 2725705, 3815987, 4906269, 5996551, 8177115, 11447961, 17989653, 19079935, 24531345, 29982755, 34343883, 41975857, 53968959, 57239805, 65962061, 89948265, 125927571, 171719415, 197886183, 209879285, 269844795, 329810305, 377782713, 461734427, 593658549, 629637855, 989430915, 1385203281, 1888913565, 2308672135, 2968292745, 4155609843, 6926016405, 20778049215]

約数ペア:

[(1, 20778049215), (3, 6926016405), (5, 4155609843), (7, 2968292745), (9, 2308672135), (11, 1888913565), (15, 1385203281), (21, 989430915), (33, 629637855), (35, 593658549), (45, 461734427), (55, 377782713), (63, 329810305), (77, 269844795), (99, 209879285), (105, 197886183), (121, 171719415), (165, 125927571), (231, 89948265), (315, 65962061), (363, 57239805), (385, 53968959), (495, 41975857), (605, 34343883), (693, 29982755), (847, 24531345), (1089, 19079935), (1155, 17989653), (1815, 11447961), (2541, 8177115), (3465, 5996551), (4235, 4906269), (5445, 3815987), (7623, 2725705), (12705, 1635423), (38115, 545141)]