1438480

素因数分解:

$2^4\times 5^1\times {\mathrm{17981}}^1$

素因数の和:17994

約数の個数: 20

約数和(自身を含む): 3344652

約数和(自身を除く): 1906172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 17981, 35962, 71924, 89905, 143848, 179810, 287696, 359620, 719240, 1438480]

約数ペア:

[(1, 1438480), (2, 719240), (4, 359620), (5, 287696), (8, 179810), (10, 143848), (16, 89905), (20, 71924), (40, 35962), (80, 17981)]