42780680

素因数分解:

$2^3\times 5^1\times {\mathrm{1069517}}^1$

素因数の和:1069528

約数の個数: 16

約数和(自身を含む): 96256620

約数和(自身を除く): 53475940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1069517, 2139034, 4278068, 5347585, 8556136, 10695170, 21390340, 42780680]

約数ペア:

[(1, 42780680), (2, 21390340), (4, 10695170), (5, 8556136), (8, 5347585), (10, 4278068), (20, 2139034), (40, 1069517)]