65205040

素因数分解:

$2^4\times 5^1\times {\mathrm{815063}}^1$

素因数の和:815076

約数の個数: 20

約数和(自身を含む): 151601904

約数和(自身を除く): 86396864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 815063, 1630126, 3260252, 4075315, 6520504, 8150630, 13041008, 16301260, 32602520, 65205040]

約数ペア:

[(1, 65205040), (2, 32602520), (4, 16301260), (5, 13041008), (8, 8150630), (10, 6520504), (16, 4075315), (20, 3260252), (40, 1630126), (80, 815063)]