31357755

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:489

約数の個数: 72

約数和(自身を含む): 64484784

約数和(自身を除く): 33127029

約数列:

[1, 3, 5, 9, 11, 13, 15, 33, 39, 45, 55, 65, 99, 117, 121, 143, 165, 195, 363, 429, 443, 495, 585, 605, 715, 1089, 1287, 1329, 1573, 1815, 2145, 2215, 3987, 4719, 4873, 5445, 5759, 6435, 6645, 7865, 14157, 14619, 17277, 19935, 23595, 24365, 28795, 43857, 51831, 53603, 63349, 70785, 73095, 86385, 160809, 190047, 219285, 259155, 268015, 316745, 482427, 570141, 696839, 804045, 950235, 2090517, 2412135, 2850705, 3484195, 6271551, 10452585, 31357755]

約数ペア:

[(1, 31357755), (3, 10452585), (5, 6271551), (9, 3484195), (11, 2850705), (13, 2412135), (15, 2090517), (33, 950235), (39, 804045), (45, 696839), (55, 570141), (65, 482427), (99, 316745), (117, 268015), (121, 259155), (143, 219285), (165, 190047), (195, 160809), (363, 86385), (429, 73095), (443, 70785), (495, 63349), (585, 53603), (605, 51831), (715, 43857), (1089, 28795), (1287, 24365), (1329, 23595), (1573, 19935), (1815, 17277), (2145, 14619), (2215, 14157), (3987, 7865), (4719, 6645), (4873, 6435), (5445, 5759)]