20163022960

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{4131767}}^1$

素因数の和:4131841

約数の個数: 40

約数和(自身を含む): 47647548576

約数和(自身を除く): 27484525616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 4131767, 8263534, 16527068, 20658835, 33054136, 41317670, 66108272, 82635340, 165270680, 252037787, 330541360, 504075574, 1008151148, 1260188935, 2016302296, 2520377870, 4032604592, 5040755740, 10081511480, 20163022960]

約数ペア:

[(1, 20163022960), (2, 10081511480), (4, 5040755740), (5, 4032604592), (8, 2520377870), (10, 2016302296), (16, 1260188935), (20, 1008151148), (40, 504075574), (61, 330541360), (80, 252037787), (122, 165270680), (244, 82635340), (305, 66108272), (488, 41317670), (610, 33054136), (976, 20658835), (1220, 16527068), (2440, 8263534), (4880, 4131767)]