20512355880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{323131}}^1$

素因数の和:323191

約数の個数: 96

約数和(自身を含む): 64329118560

約数和(自身を除く): 43816762680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 529, 552, 690, 920, 1058, 1380, 1587, 2116, 2645, 2760, 3174, 4232, 5290, 6348, 7935, 10580, 12696, 15870, 21160, 31740, 63480, 323131, 646262, 969393, 1292524, 1615655, 1938786, 2585048, 3231310, 3877572, 4846965, 6462620, 7432013, 7755144, 9693930, 12925240, 14864026, 19387860, 22296039, 29728052, 37160065, 38775720, 44592078, 59456104, 74320130, 89184156, 111480195, 148640260, 170936299, 178368312, 222960390, 297280520, 341872598, 445920780, 512808897, 683745196, 854681495, 891841560, 1025617794, 1367490392, 1709362990, 2051235588, 2564044485, 3418725980, 4102471176, 5128088970, 6837451960, 10256177940, 20512355880]

約数ペア:

[(1, 20512355880), (2, 10256177940), (3, 6837451960), (4, 5128088970), (5, 4102471176), (6, 3418725980), (8, 2564044485), (10, 2051235588), (12, 1709362990), (15, 1367490392), (20, 1025617794), (23, 891841560), (24, 854681495), (30, 683745196), (40, 512808897), (46, 445920780), (60, 341872598), (69, 297280520), (92, 222960390), (115, 178368312), (120, 170936299), (138, 148640260), (184, 111480195), (230, 89184156), (276, 74320130), (345, 59456104), (460, 44592078), (529, 38775720), (552, 37160065), (690, 29728052), (920, 22296039), (1058, 19387860), (1380, 14864026), (1587, 12925240), (2116, 9693930), (2645, 7755144), (2760, 7432013), (3174, 6462620), (4232, 4846965), (5290, 3877572), (6348, 3231310), (7935, 2585048), (10580, 1938786), (12696, 1615655), (15870, 1292524), (21160, 969393), (31740, 646262), (63480, 323131)]