20090565

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 39674880

約数和(自身を除く): 19584315

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 83, 99, 135, 163, 165, 249, 297, 415, 489, 495, 747, 815, 913, 1245, 1467, 1485, 1793, 2241, 2445, 2739, 3735, 4401, 4565, 5379, 7335, 8217, 8965, 11205, 13529, 13695, 16137, 22005, 24651, 26895, 40587, 41085, 48411, 67645, 80685, 121761, 123255, 148819, 202935, 242055, 365283, 446457, 608805, 744095, 1339371, 1826415, 2232285, 4018113, 6696855, 20090565]

約数ペア:

[(1, 20090565), (3, 6696855), (5, 4018113), (9, 2232285), (11, 1826415), (15, 1339371), (27, 744095), (33, 608805), (45, 446457), (55, 365283), (83, 242055), (99, 202935), (135, 148819), (163, 123255), (165, 121761), (249, 80685), (297, 67645), (415, 48411), (489, 41085), (495, 40587), (747, 26895), (815, 24651), (913, 22005), (1245, 16137), (1467, 13695), (1485, 13529), (1793, 11205), (2241, 8965), (2445, 8217), (2739, 7335), (3735, 5379), (4401, 4565)]