69942680

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4057}}^1$

素因数の和:4499

約数の個数: 32

約数和(自身を含む): 157775040

約数和(自身を除く): 87832360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4057, 4310, 8114, 8620, 16228, 17240, 20285, 32456, 40570, 81140, 162280, 1748567, 3497134, 6994268, 8742835, 13988536, 17485670, 34971340, 69942680]

約数ペア:

[(1, 69942680), (2, 34971340), (4, 17485670), (5, 13988536), (8, 8742835), (10, 6994268), (20, 3497134), (40, 1748567), (431, 162280), (862, 81140), (1724, 40570), (2155, 32456), (3448, 20285), (4057, 17240), (4310, 16228), (8114, 8620)]