1620030643

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 2158755840

約数和(自身を除く): 538725197

約数列:

[1, 7, 11, 31, 71, 77, 79, 121, 217, 341, 497, 553, 781, 847, 869, 1331, 2201, 2387, 2449, 3751, 5467, 5609, 6083, 8591, 9317, 9559, 15407, 17143, 24211, 26257, 26939, 39263, 41261, 60137, 61699, 66913, 94501, 105149, 169477, 173879, 188573, 266321, 288827, 296329, 431893, 661507, 678689, 736043, 1217153, 1864247, 1912669, 2074303, 2929531, 3259619, 4750823, 7465579, 13388683, 20506717, 21039359, 22817333, 52259053, 147275513, 231432949, 1620030643]

約数ペア:

[(1, 1620030643), (7, 231432949), (11, 147275513), (31, 52259053), (71, 22817333), (77, 21039359), (79, 20506717), (121, 13388683), (217, 7465579), (341, 4750823), (497, 3259619), (553, 2929531), (781, 2074303), (847, 1912669), (869, 1864247), (1331, 1217153), (2201, 736043), (2387, 678689), (2449, 661507), (3751, 431893), (5467, 296329), (5609, 288827), (6083, 266321), (8591, 188573), (9317, 173879), (9559, 169477), (15407, 105149), (17143, 94501), (24211, 66913), (26257, 61699), (26939, 60137), (39263, 41261)]