20512960155

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1907}}^1$

素因数の和:2090

約数の個数: 128

約数和(自身を含む): 39893990400

約数和(自身を除く): 19381030245

約数列:

[1, 3, 5, 9, 15, 17, 27, 43, 45, 51, 85, 109, 129, 135, 153, 215, 255, 327, 387, 459, 545, 645, 731, 765, 981, 1161, 1635, 1853, 1907, 1935, 2193, 2295, 2943, 3655, 4687, 4905, 5559, 5721, 5805, 6579, 9265, 9535, 10965, 14061, 14715, 16677, 17163, 19737, 23435, 27795, 28605, 32419, 32895, 42183, 50031, 51489, 70305, 79679, 82001, 83385, 85815, 97257, 98685, 126549, 162095, 207863, 210915, 239037, 246003, 250155, 257445, 291771, 398395, 410005, 486285, 623589, 632745, 717111, 738009, 875313, 1039315, 1195185, 1230015, 1394017, 1458855, 1870767, 2151333, 2214027, 3117945, 3533671, 3585555, 3690045, 4182051, 4376565, 5612301, 6970085, 8938109, 9353835, 10601013, 10756665, 11070135, 12546153, 17668355, 20910255, 26814327, 28061505, 31803039, 37638459, 44690545, 53005065, 62730765, 80442981, 95409117, 134071635, 151947853, 159015195, 188192295, 241328943, 402214905, 455843559, 477045585, 759739265, 1206644715, 1367530677, 2279217795, 4102592031, 6837653385, 20512960155]

約数ペア:

[(1, 20512960155), (3, 6837653385), (5, 4102592031), (9, 2279217795), (15, 1367530677), (17, 1206644715), (27, 759739265), (43, 477045585), (45, 455843559), (51, 402214905), (85, 241328943), (109, 188192295), (129, 159015195), (135, 151947853), (153, 134071635), (215, 95409117), (255, 80442981), (327, 62730765), (387, 53005065), (459, 44690545), (545, 37638459), (645, 31803039), (731, 28061505), (765, 26814327), (981, 20910255), (1161, 17668355), (1635, 12546153), (1853, 11070135), (1907, 10756665), (1935, 10601013), (2193, 9353835), (2295, 8938109), (2943, 6970085), (3655, 5612301), (4687, 4376565), (4905, 4182051), (5559, 3690045), (5721, 3585555), (5805, 3533671), (6579, 3117945), (9265, 2214027), (9535, 2151333), (10965, 1870767), (14061, 1458855), (14715, 1394017), (16677, 1230015), (17163, 1195185), (19737, 1039315), (23435, 875313), (27795, 738009), (28605, 717111), (32419, 632745), (32895, 623589), (42183, 486285), (50031, 410005), (51489, 398395), (70305, 291771), (79679, 257445), (82001, 250155), (83385, 246003), (85815, 239037), (97257, 210915), (98685, 207863), (126549, 162095)]