8641920

素因数分解:

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

素因数の和:672

約数の個数: 128

約数和(自身を含む): 31530240

約数和(自身を除く): 22888320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 643, 672, 840, 896, 960, 1120, 1286, 1344, 1680, 1920, 1929, 2240, 2572, 2688, 3215, 3360, 3858, 4480, 4501, 5144, 6430, 6720, 7716, 9002, 9645, 10288, 12860, 13440, 13503, 15432, 18004, 19290, 20576, 22505, 25720, 27006, 30864, 36008, 38580, 41152, 45010, 51440, 54012, 61728, 67515, 72016, 77160, 82304, 90020, 102880, 108024, 123456, 135030, 144032, 154320, 180040, 205760, 216048, 246912, 270060, 288064, 308640, 360080, 411520, 432096, 540120, 576128, 617280, 720160, 864192, 1080240, 1234560, 1440320, 1728384, 2160480, 2880640, 4320960, 8641920]

約数ペア:

[(1, 8641920), (2, 4320960), (3, 2880640), (4, 2160480), (5, 1728384), (6, 1440320), (7, 1234560), (8, 1080240), (10, 864192), (12, 720160), (14, 617280), (15, 576128), (16, 540120), (20, 432096), (21, 411520), (24, 360080), (28, 308640), (30, 288064), (32, 270060), (35, 246912), (40, 216048), (42, 205760), (48, 180040), (56, 154320), (60, 144032), (64, 135030), (70, 123456), (80, 108024), (84, 102880), (96, 90020), (105, 82304), (112, 77160), (120, 72016), (128, 67515), (140, 61728), (160, 54012), (168, 51440), (192, 45010), (210, 41152), (224, 38580), (240, 36008), (280, 30864), (320, 27006), (336, 25720), (384, 22505), (420, 20576), (448, 19290), (480, 18004), (560, 15432), (640, 13503), (643, 13440), (672, 12860), (840, 10288), (896, 9645), (960, 9002), (1120, 7716), (1286, 6720), (1344, 6430), (1680, 5144), (1920, 4501), (1929, 4480), (2240, 3858), (2572, 3360), (2688, 3215)]