6481440

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{643}}^1$

素因数の和:671

約数の個数: 144

約数和(自身を含む): 25316928

約数和(自身を除く): 18835488

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 643, 672, 720, 840, 1008, 1120, 1260, 1286, 1440, 1680, 1929, 2016, 2520, 2572, 3215, 3360, 3858, 4501, 5040, 5144, 5787, 6430, 7716, 9002, 9645, 10080, 10288, 11574, 12860, 13503, 15432, 18004, 19290, 20576, 22505, 23148, 25720, 27006, 28935, 30864, 36008, 38580, 40509, 45010, 46296, 51440, 54012, 57870, 61728, 67515, 72016, 77160, 81018, 90020, 92592, 102880, 108024, 115740, 135030, 144032, 154320, 162036, 180040, 185184, 202545, 216048, 231480, 270060, 308640, 324072, 360080, 405090, 432096, 462960, 540120, 648144, 720160, 810180, 925920, 1080240, 1296288, 1620360, 2160480, 3240720, 6481440]

約数ペア:

[(1, 6481440), (2, 3240720), (3, 2160480), (4, 1620360), (5, 1296288), (6, 1080240), (7, 925920), (8, 810180), (9, 720160), (10, 648144), (12, 540120), (14, 462960), (15, 432096), (16, 405090), (18, 360080), (20, 324072), (21, 308640), (24, 270060), (28, 231480), (30, 216048), (32, 202545), (35, 185184), (36, 180040), (40, 162036), (42, 154320), (45, 144032), (48, 135030), (56, 115740), (60, 108024), (63, 102880), (70, 92592), (72, 90020), (80, 81018), (84, 77160), (90, 72016), (96, 67515), (105, 61728), (112, 57870), (120, 54012), (126, 51440), (140, 46296), (144, 45010), (160, 40509), (168, 38580), (180, 36008), (210, 30864), (224, 28935), (240, 27006), (252, 25720), (280, 23148), (288, 22505), (315, 20576), (336, 19290), (360, 18004), (420, 15432), (480, 13503), (504, 12860), (560, 11574), (630, 10288), (643, 10080), (672, 9645), (720, 9002), (840, 7716), (1008, 6430), (1120, 5787), (1260, 5144), (1286, 5040), (1440, 4501), (1680, 3858), (1929, 3360), (2016, 3215), (2520, 2572)]