20710040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39827}}^1$

素因数の和:39851

約数の個数: 32

約数和(自身を含む): 50183280

約数和(自身を除く): 29473240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39827, 79654, 159308, 199135, 318616, 398270, 517751, 796540, 1035502, 1593080, 2071004, 2588755, 4142008, 5177510, 10355020, 20710040]

約数ペア:

[(1, 20710040), (2, 10355020), (4, 5177510), (5, 4142008), (8, 2588755), (10, 2071004), (13, 1593080), (20, 1035502), (26, 796540), (40, 517751), (52, 398270), (65, 318616), (104, 199135), (130, 159308), (260, 79654), (520, 39827)]