251040720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{21347}}^1$

素因数の和:21377

約数の個数: 120

約数和(自身を含む): 905325984

約数和(自身を除く): 654285264

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1960, 2352, 2940, 3920, 5880, 11760, 21347, 42694, 64041, 85388, 106735, 128082, 149429, 170776, 213470, 256164, 298858, 320205, 341552, 426940, 448287, 512328, 597716, 640410, 747145, 853880, 896574, 1024656, 1046003, 1195432, 1280820, 1494290, 1707760, 1793148, 2092006, 2241435, 2390864, 2561640, 2988580, 3138009, 3586296, 4184012, 4482870, 5123280, 5230015, 5977160, 6276018, 7172592, 8368024, 8965740, 10460030, 11954320, 12552036, 15690045, 16736048, 17931480, 20920060, 25104072, 31380090, 35862960, 41840120, 50208144, 62760180, 83680240, 125520360, 251040720]

約数ペア:

[(1, 251040720), (2, 125520360), (3, 83680240), (4, 62760180), (5, 50208144), (6, 41840120), (7, 35862960), (8, 31380090), (10, 25104072), (12, 20920060), (14, 17931480), (15, 16736048), (16, 15690045), (20, 12552036), (21, 11954320), (24, 10460030), (28, 8965740), (30, 8368024), (35, 7172592), (40, 6276018), (42, 5977160), (48, 5230015), (49, 5123280), (56, 4482870), (60, 4184012), (70, 3586296), (80, 3138009), (84, 2988580), (98, 2561640), (105, 2390864), (112, 2241435), (120, 2092006), (140, 1793148), (147, 1707760), (168, 1494290), (196, 1280820), (210, 1195432), (240, 1046003), (245, 1024656), (280, 896574), (294, 853880), (336, 747145), (392, 640410), (420, 597716), (490, 512328), (560, 448287), (588, 426940), (735, 341552), (784, 320205), (840, 298858), (980, 256164), (1176, 213470), (1470, 170776), (1680, 149429), (1960, 128082), (2352, 106735), (2940, 85388), (3920, 64041), (5880, 42694), (11760, 21347)]