20329815

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 37384704

約数和(自身を除く): 17054889

約数列:

[1, 3, 5, 11, 15, 23, 33, 55, 69, 115, 121, 165, 253, 345, 363, 487, 605, 759, 1265, 1461, 1815, 2435, 2783, 3795, 5357, 7305, 8349, 11201, 13915, 16071, 26785, 33603, 41745, 56005, 58927, 80355, 123211, 168015, 176781, 294635, 369633, 616055, 883905, 1355321, 1848165, 4065963, 6776605, 20329815]

約数ペア:

[(1, 20329815), (3, 6776605), (5, 4065963), (11, 1848165), (15, 1355321), (23, 883905), (33, 616055), (55, 369633), (69, 294635), (115, 176781), (121, 168015), (165, 123211), (253, 80355), (345, 58927), (363, 56005), (487, 41745), (605, 33603), (759, 26785), (1265, 16071), (1461, 13915), (1815, 11201), (2435, 8349), (2783, 7305), (3795, 5357)]