666142540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{31511}}^1$

素因数の和:31678

約数の個数: 48

約数和(自身を含む): 1609380864

約数和(自身を除く): 943238324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151, 302, 604, 755, 1057, 1510, 2114, 3020, 4228, 5285, 10570, 21140, 31511, 63022, 126044, 157555, 220577, 315110, 441154, 630220, 882308, 1102885, 2205770, 4411540, 4758161, 9516322, 19032644, 23790805, 33307127, 47581610, 66614254, 95163220, 133228508, 166535635, 333071270, 666142540]

約数ペア:

[(1, 666142540), (2, 333071270), (4, 166535635), (5, 133228508), (7, 95163220), (10, 66614254), (14, 47581610), (20, 33307127), (28, 23790805), (35, 19032644), (70, 9516322), (140, 4758161), (151, 4411540), (302, 2205770), (604, 1102885), (755, 882308), (1057, 630220), (1510, 441154), (2114, 315110), (3020, 220577), (4228, 157555), (5285, 126044), (10570, 63022), (21140, 31511)]