20451360

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1$

素因数の和:466

約数の個数: 96

約数和(自身を含む): 65100672

約数和(自身を除く): 44649312

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 137, 160, 240, 274, 311, 411, 480, 548, 622, 685, 822, 933, 1096, 1244, 1370, 1555, 1644, 1866, 2055, 2192, 2488, 2740, 3110, 3288, 3732, 4110, 4384, 4665, 4976, 5480, 6220, 6576, 7464, 8220, 9330, 9952, 10960, 12440, 13152, 14928, 16440, 18660, 21920, 24880, 29856, 32880, 37320, 42607, 49760, 65760, 74640, 85214, 127821, 149280, 170428, 213035, 255642, 340856, 426070, 511284, 639105, 681712, 852140, 1022568, 1278210, 1363424, 1704280, 2045136, 2556420, 3408560, 4090272, 5112840, 6817120, 10225680, 20451360]

約数ペア:

[(1, 20451360), (2, 10225680), (3, 6817120), (4, 5112840), (5, 4090272), (6, 3408560), (8, 2556420), (10, 2045136), (12, 1704280), (15, 1363424), (16, 1278210), (20, 1022568), (24, 852140), (30, 681712), (32, 639105), (40, 511284), (48, 426070), (60, 340856), (80, 255642), (96, 213035), (120, 170428), (137, 149280), (160, 127821), (240, 85214), (274, 74640), (311, 65760), (411, 49760), (480, 42607), (548, 37320), (622, 32880), (685, 29856), (822, 24880), (933, 21920), (1096, 18660), (1244, 16440), (1370, 14928), (1555, 13152), (1644, 12440), (1866, 10960), (2055, 9952), (2192, 9330), (2488, 8220), (2740, 7464), (3110, 6576), (3288, 6220), (3732, 5480), (4110, 4976), (4384, 4665)]