290447080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{521}}^1$

素因数の和:731

約数の個数: 128

約数和(自身を含む): 820834560

約数和(自身を除く): 530387480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 181, 220, 280, 308, 362, 385, 440, 521, 616, 724, 770, 905, 1042, 1267, 1448, 1540, 1810, 1991, 2084, 2534, 2605, 3080, 3620, 3647, 3982, 4168, 5068, 5210, 5731, 6335, 7240, 7294, 7964, 9955, 10136, 10420, 11462, 12670, 13937, 14588, 15928, 18235, 19910, 20840, 22924, 25340, 27874, 28655, 29176, 36470, 39820, 40117, 45848, 50680, 55748, 57310, 69685, 72940, 79640, 80234, 94301, 111496, 114620, 139370, 145880, 160468, 188602, 200585, 229240, 278740, 320936, 377204, 401170, 471505, 557480, 660107, 754408, 802340, 943010, 1037311, 1320214, 1604680, 1886020, 2074622, 2640428, 3300535, 3772040, 4149244, 5186555, 5280856, 6601070, 7261177, 8298488, 10373110, 13202140, 14522354, 20746220, 26404280, 29044708, 36305885, 41492440, 58089416, 72611770, 145223540, 290447080]

約数ペア:

[(1, 290447080), (2, 145223540), (4, 72611770), (5, 58089416), (7, 41492440), (8, 36305885), (10, 29044708), (11, 26404280), (14, 20746220), (20, 14522354), (22, 13202140), (28, 10373110), (35, 8298488), (40, 7261177), (44, 6601070), (55, 5280856), (56, 5186555), (70, 4149244), (77, 3772040), (88, 3300535), (110, 2640428), (140, 2074622), (154, 1886020), (181, 1604680), (220, 1320214), (280, 1037311), (308, 943010), (362, 802340), (385, 754408), (440, 660107), (521, 557480), (616, 471505), (724, 401170), (770, 377204), (905, 320936), (1042, 278740), (1267, 229240), (1448, 200585), (1540, 188602), (1810, 160468), (1991, 145880), (2084, 139370), (2534, 114620), (2605, 111496), (3080, 94301), (3620, 80234), (3647, 79640), (3982, 72940), (4168, 69685), (5068, 57310), (5210, 55748), (5731, 50680), (6335, 45848), (7240, 40117), (7294, 39820), (7964, 36470), (9955, 29176), (10136, 28655), (10420, 27874), (11462, 25340), (12670, 22924), (13937, 20840), (14588, 19910), (15928, 18235)]