20584560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{431}}^1$

素因数の和:646

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 43697040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 398, 431, 597, 796, 862, 995, 1194, 1293, 1592, 1724, 1990, 2155, 2388, 2586, 2985, 3184, 3448, 3980, 4310, 4776, 5172, 5970, 6465, 6896, 7960, 8620, 9552, 10344, 11940, 12930, 15920, 17240, 20688, 23880, 25860, 34480, 47760, 51720, 85769, 103440, 171538, 257307, 343076, 428845, 514614, 686152, 857690, 1029228, 1286535, 1372304, 1715380, 2058456, 2573070, 3430760, 4116912, 5146140, 6861520, 10292280, 20584560]

約数ペア:

[(1, 20584560), (2, 10292280), (3, 6861520), (4, 5146140), (5, 4116912), (6, 3430760), (8, 2573070), (10, 2058456), (12, 1715380), (15, 1372304), (16, 1286535), (20, 1029228), (24, 857690), (30, 686152), (40, 514614), (48, 428845), (60, 343076), (80, 257307), (120, 171538), (199, 103440), (240, 85769), (398, 51720), (431, 47760), (597, 34480), (796, 25860), (862, 23880), (995, 20688), (1194, 17240), (1293, 15920), (1592, 12930), (1724, 11940), (1990, 10344), (2155, 9552), (2388, 8620), (2586, 7960), (2985, 6896), (3184, 6465), (3448, 5970), (3980, 5172), (4310, 4776)]