12443980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{6991}}^1$

素因数の和:7089

約数の個数: 24

約数和(自身を含む): 26429760

約数和(自身を除く): 13985780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 6991, 13982, 27964, 34955, 69910, 139820, 622199, 1244398, 2488796, 3110995, 6221990, 12443980]

約数ペア:

[(1, 12443980), (2, 6221990), (4, 3110995), (5, 2488796), (10, 1244398), (20, 622199), (89, 139820), (178, 69910), (356, 34955), (445, 27964), (890, 13982), (1780, 6991)]