311206280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1279}}^1$

素因数の和:1387

約数の個数: 128

約数和(自身を含む): 884736000

約数和(自身を除く): 573529720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 79, 88, 110, 140, 154, 158, 220, 280, 308, 316, 385, 395, 440, 553, 616, 632, 770, 790, 869, 1106, 1279, 1540, 1580, 1738, 2212, 2558, 2765, 3080, 3160, 3476, 4345, 4424, 5116, 5530, 6083, 6395, 6952, 8690, 8953, 10232, 11060, 12166, 12790, 14069, 17380, 17906, 22120, 24332, 25580, 28138, 30415, 34760, 35812, 44765, 48664, 51160, 56276, 60830, 70345, 71624, 89530, 98483, 101041, 112552, 121660, 140690, 179060, 196966, 202082, 243320, 281380, 358120, 393932, 404164, 492415, 505205, 562760, 707287, 787864, 808328, 984830, 1010410, 1111451, 1414574, 1969660, 2020820, 2222902, 2829148, 3536435, 3939320, 4041640, 4445804, 5557255, 5658296, 7072870, 7780157, 8891608, 11114510, 14145740, 15560314, 22229020, 28291480, 31120628, 38900785, 44458040, 62241256, 77801570, 155603140, 311206280]

約数ペア:

[(1, 311206280), (2, 155603140), (4, 77801570), (5, 62241256), (7, 44458040), (8, 38900785), (10, 31120628), (11, 28291480), (14, 22229020), (20, 15560314), (22, 14145740), (28, 11114510), (35, 8891608), (40, 7780157), (44, 7072870), (55, 5658296), (56, 5557255), (70, 4445804), (77, 4041640), (79, 3939320), (88, 3536435), (110, 2829148), (140, 2222902), (154, 2020820), (158, 1969660), (220, 1414574), (280, 1111451), (308, 1010410), (316, 984830), (385, 808328), (395, 787864), (440, 707287), (553, 562760), (616, 505205), (632, 492415), (770, 404164), (790, 393932), (869, 358120), (1106, 281380), (1279, 243320), (1540, 202082), (1580, 196966), (1738, 179060), (2212, 140690), (2558, 121660), (2765, 112552), (3080, 101041), (3160, 98483), (3476, 89530), (4345, 71624), (4424, 70345), (5116, 60830), (5530, 56276), (6083, 51160), (6395, 48664), (6952, 44765), (8690, 35812), (8953, 34760), (10232, 30415), (11060, 28138), (12166, 25580), (12790, 24332), (14069, 22120), (17380, 17906)]