251628720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{21397}}^1$

素因数の和:21427

約数の個数: 120

約数和(自身を含む): 907446384

約数和(自身を除く): 655817664

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, 21397, 42794, 64191, 85588, 106985, 128382, 149779, 171176, 213970, 256764, 299558, 320955, 342352, 427940, 449337, 513528, 599116, 641910, 748895, 855880, 898674, 1027056, 1048453, 1198232, 1283820, 1497790, 1711760, 1797348, 2096906, 2246685, 2396464, 2567640, 2995580, 3145359, 3594696, 4193812, 4493370, 5135280, 5242265, 5991160, 6290718, 7189392, 8387624, 8986740, 10484530, 11982320, 12581436, 15726795, 16775248, 17973480, 20969060, 25162872, 31453590, 35946960, 41938120, 50325744, 62907180, 83876240, 125814360, 251628720]

約数ペア:

[(1, 251628720), (2, 125814360), (3, 83876240), (4, 62907180), (5, 50325744), (6, 41938120), (7, 35946960), (8, 31453590), (10, 25162872), (12, 20969060), (14, 17973480), (15, 16775248), (16, 15726795), (20, 12581436), (21, 11982320), (24, 10484530), (28, 8986740), (30, 8387624), (35, 7189392), (40, 6290718), (42, 5991160), (48, 5242265), (49, 5135280), (56, 4493370), (60, 4193812), (70, 3594696), (80, 3145359), (84, 2995580), (98, 2567640), (105, 2396464), (112, 2246685), (120, 2096906), (140, 1797348), (147, 1711760), (168, 1497790), (196, 1283820), (210, 1198232), (240, 1048453), (245, 1027056), (280, 898674), (294, 855880), (336, 748895), (392, 641910), (420, 599116), (490, 513528), (560, 449337), (588, 427940), (735, 342352), (784, 320955), (840, 299558), (980, 256764), (1176, 213970), (1470, 171176), (1680, 149779), (1960, 128382), (2352, 106985), (2940, 85588), (3920, 64191), (5880, 42794), (11760, 21397)]