20410520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39251}}^1$

素因数の和:39275

約数の個数: 32

約数和(自身を含む): 49457520

約数和(自身を除く): 29047000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39251, 78502, 157004, 196255, 314008, 392510, 510263, 785020, 1020526, 1570040, 2041052, 2551315, 4082104, 5102630, 10205260, 20410520]

約数ペア:

[(1, 20410520), (2, 10205260), (4, 5102630), (5, 4082104), (8, 2551315), (10, 2041052), (13, 1570040), (20, 1020526), (26, 785020), (40, 510263), (52, 392510), (65, 314008), (104, 196255), (130, 157004), (260, 78502), (520, 39251)]