1281567320

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{49367}}^1$

素因数の和:49448

約数の個数: 64

約数和(自身を含む): 3199046400

約数和(自身を除く): 1917479080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 59, 88, 110, 118, 220, 236, 295, 440, 472, 590, 649, 1180, 1298, 2360, 2596, 3245, 5192, 6490, 12980, 25960, 49367, 98734, 197468, 246835, 394936, 493670, 543037, 987340, 1086074, 1974680, 2172148, 2715185, 2912653, 4344296, 5430370, 5825306, 10860740, 11650612, 14563265, 21721480, 23301224, 29126530, 32039183, 58253060, 64078366, 116506120, 128156732, 160195915, 256313464, 320391830, 640783660, 1281567320]

約数ペア:

[(1, 1281567320), (2, 640783660), (4, 320391830), (5, 256313464), (8, 160195915), (10, 128156732), (11, 116506120), (20, 64078366), (22, 58253060), (40, 32039183), (44, 29126530), (55, 23301224), (59, 21721480), (88, 14563265), (110, 11650612), (118, 10860740), (220, 5825306), (236, 5430370), (295, 4344296), (440, 2912653), (472, 2715185), (590, 2172148), (649, 1974680), (1180, 1086074), (1298, 987340), (2360, 543037), (2596, 493670), (3245, 394936), (5192, 246835), (6490, 197468), (12980, 98734), (25960, 49367)]