1140980

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{641}}^1$

素因数の和:739

約数の個数: 24

約数和(自身を含む): 2426760

約数和(自身を除く): 1285780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 641, 890, 1282, 1780, 2564, 3205, 6410, 12820, 57049, 114098, 228196, 285245, 570490, 1140980]

約数ペア:

[(1, 1140980), (2, 570490), (4, 285245), (5, 228196), (10, 114098), (20, 57049), (89, 12820), (178, 6410), (356, 3205), (445, 2564), (641, 1780), (890, 1282)]