20583280

素因数分解:

$2^4\times 5^1\times {\mathrm{457}}^1\times {\mathrm{563}}^1$

素因数の和:1033

約数の個数: 40

約数和(自身を含む): 48046032

約数和(自身を除く): 27462752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 457, 563, 914, 1126, 1828, 2252, 2285, 2815, 3656, 4504, 4570, 5630, 7312, 9008, 9140, 11260, 18280, 22520, 36560, 45040, 257291, 514582, 1029164, 1286455, 2058328, 2572910, 4116656, 5145820, 10291640, 20583280]

約数ペア:

[(1, 20583280), (2, 10291640), (4, 5145820), (5, 4116656), (8, 2572910), (10, 2058328), (16, 1286455), (20, 1029164), (40, 514582), (80, 257291), (457, 45040), (563, 36560), (914, 22520), (1126, 18280), (1828, 11260), (2252, 9140), (2285, 9008), (2815, 7312), (3656, 5630), (4504, 4570)]