20160642705

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:663

約数の個数: 128

約数和(自身を含む): 38494310400

約数和(自身を除く): 18333667695

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 67, 105, 139, 159, 201, 265, 335, 371, 389, 417, 469, 695, 795, 973, 1005, 1113, 1167, 1407, 1855, 1945, 2085, 2345, 2723, 2919, 3551, 4865, 5565, 5835, 7035, 7367, 8169, 9313, 10653, 13615, 14595, 17755, 20617, 22101, 24857, 26063, 27939, 36835, 40845, 46565, 51569, 53265, 54071, 61851, 65191, 74571, 78189, 103085, 110505, 124285, 130315, 139695, 144319, 154707, 162213, 182441, 195573, 257845, 270355, 309255, 325955, 372855, 378497, 390945, 432957, 493589, 547323, 721595, 773535, 811065, 912205, 977865, 1135491, 1381339, 1480767, 1892485, 2164785, 2467945, 2736615, 2865763, 3455123, 3622757, 4144017, 5677455, 6906695, 7403835, 8597289, 9669373, 10365369, 10868271, 14328815, 17275615, 18113785, 20060341, 20720085, 25359299, 29008119, 42986445, 48346865, 51826845, 54341355, 60181023, 76077897, 100301705, 126796495, 145040595, 192006121, 300905115, 380389485, 576018363, 960030605, 1344042847, 2880091815, 4032128541, 6720214235, 20160642705]

約数ペア:

[(1, 20160642705), (3, 6720214235), (5, 4032128541), (7, 2880091815), (15, 1344042847), (21, 960030605), (35, 576018363), (53, 380389485), (67, 300905115), (105, 192006121), (139, 145040595), (159, 126796495), (201, 100301705), (265, 76077897), (335, 60181023), (371, 54341355), (389, 51826845), (417, 48346865), (469, 42986445), (695, 29008119), (795, 25359299), (973, 20720085), (1005, 20060341), (1113, 18113785), (1167, 17275615), (1407, 14328815), (1855, 10868271), (1945, 10365369), (2085, 9669373), (2345, 8597289), (2723, 7403835), (2919, 6906695), (3551, 5677455), (4865, 4144017), (5565, 3622757), (5835, 3455123), (7035, 2865763), (7367, 2736615), (8169, 2467945), (9313, 2164785), (10653, 1892485), (13615, 1480767), (14595, 1381339), (17755, 1135491), (20617, 977865), (22101, 912205), (24857, 811065), (26063, 773535), (27939, 721595), (36835, 547323), (40845, 493589), (46565, 432957), (51569, 390945), (53265, 378497), (54071, 372855), (61851, 325955), (65191, 309255), (74571, 270355), (78189, 257845), (103085, 195573), (110505, 182441), (124285, 162213), (130315, 154707), (139695, 144319)]