2176940

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 4626720

約数和(自身を除く): 2449780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1223, 1780, 2446, 4892, 6115, 12230, 24460, 108847, 217694, 435388, 544235, 1088470, 2176940]

約数ペア:

[(1, 2176940), (2, 1088470), (4, 544235), (5, 435388), (10, 217694), (20, 108847), (89, 24460), (178, 12230), (356, 6115), (445, 4892), (890, 2446), (1223, 1780)]