28721280

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{2137}}^1$

素因数の和:2166

約数の個数: 128

約数和(自身を含む): 104676480

約数和(自身を除く): 75955200

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, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2137, 2240, 2688, 3360, 4274, 4480, 6411, 6720, 8548, 10685, 12822, 13440, 14959, 17096, 21370, 25644, 29918, 32055, 34192, 42740, 44877, 51288, 59836, 64110, 68384, 74795, 85480, 89754, 102576, 119672, 128220, 136768, 149590, 170960, 179508, 205152, 224385, 239344, 256440, 273536, 299180, 341920, 359016, 410304, 448770, 478688, 512880, 598360, 683840, 718032, 820608, 897540, 957376, 1025760, 1196720, 1367680, 1436064, 1795080, 1914752, 2051520, 2393440, 2872128, 3590160, 4103040, 4786880, 5744256, 7180320, 9573760, 14360640, 28721280]

約数ペア:

[(1, 28721280), (2, 14360640), (3, 9573760), (4, 7180320), (5, 5744256), (6, 4786880), (7, 4103040), (8, 3590160), (10, 2872128), (12, 2393440), (14, 2051520), (15, 1914752), (16, 1795080), (20, 1436064), (21, 1367680), (24, 1196720), (28, 1025760), (30, 957376), (32, 897540), (35, 820608), (40, 718032), (42, 683840), (48, 598360), (56, 512880), (60, 478688), (64, 448770), (70, 410304), (80, 359016), (84, 341920), (96, 299180), (105, 273536), (112, 256440), (120, 239344), (128, 224385), (140, 205152), (160, 179508), (168, 170960), (192, 149590), (210, 136768), (224, 128220), (240, 119672), (280, 102576), (320, 89754), (336, 85480), (384, 74795), (420, 68384), (448, 64110), (480, 59836), (560, 51288), (640, 44877), (672, 42740), (840, 34192), (896, 32055), (960, 29918), (1120, 25644), (1344, 21370), (1680, 17096), (1920, 14959), (2137, 13440), (2240, 12822), (2688, 10685), (3360, 8548), (4274, 6720), (4480, 6411)]