81618705

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{86369}}^1$

素因数の和:86390

約数の個数: 32

約数和(自身を含む): 165830400

約数和(自身を除く): 84211695

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 86369, 259107, 431845, 604583, 777321, 1295535, 1813749, 2331963, 3022915, 3886605, 5441247, 9068745, 11659815, 16323741, 27206235, 81618705]

約数ペア:

[(1, 81618705), (3, 27206235), (5, 16323741), (7, 11659815), (9, 9068745), (15, 5441247), (21, 3886605), (27, 3022915), (35, 2331963), (45, 1813749), (63, 1295535), (105, 777321), (135, 604583), (189, 431845), (315, 259107), (945, 86369)]