20594080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{9901}}^1$

素因数の和:9929

約数の個数: 48

約数和(自身を含む): 52401384

約数和(自身を除く): 31807304

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 9901, 19802, 39604, 49505, 79208, 99010, 128713, 158416, 198020, 257426, 316832, 396040, 514852, 643565, 792080, 1029704, 1287130, 1584160, 2059408, 2574260, 4118816, 5148520, 10297040, 20594080]

約数ペア:

[(1, 20594080), (2, 10297040), (4, 5148520), (5, 4118816), (8, 2574260), (10, 2059408), (13, 1584160), (16, 1287130), (20, 1029704), (26, 792080), (32, 643565), (40, 514852), (52, 396040), (65, 316832), (80, 257426), (104, 198020), (130, 158416), (160, 128713), (208, 99010), (260, 79208), (416, 49505), (520, 39604), (1040, 19802), (2080, 9901)]