1123180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{631}}^1$

素因数の和:729

約数の個数: 24

約数和(自身を含む): 2388960

約数和(自身を除く): 1265780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 631, 890, 1262, 1780, 2524, 3155, 6310, 12620, 56159, 112318, 224636, 280795, 561590, 1123180]

約数ペア:

[(1, 1123180), (2, 561590), (4, 280795), (5, 224636), (10, 112318), (20, 56159), (89, 12620), (178, 6310), (356, 3155), (445, 2524), (631, 1780), (890, 1262)]