20360080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19577}}^1$

素因数の和:19603

約数の個数: 40

約数和(自身を含む): 50981112

約数和(自身を除く): 30621032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 19577, 39154, 78308, 97885, 156616, 195770, 254501, 313232, 391540, 509002, 783080, 1018004, 1272505, 1566160, 2036008, 2545010, 4072016, 5090020, 10180040, 20360080]

約数ペア:

[(1, 20360080), (2, 10180040), (4, 5090020), (5, 4072016), (8, 2545010), (10, 2036008), (13, 1566160), (16, 1272505), (20, 1018004), (26, 783080), (40, 509002), (52, 391540), (65, 313232), (80, 254501), (104, 195770), (130, 156616), (208, 97885), (260, 78308), (520, 39154), (1040, 19577)]