219025880

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{12473}}^1$

素因数の和:12923

約数の個数: 32

約数和(自身を含む): 493970400

約数和(自身を除く): 274944520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 8780, 12473, 17560, 24946, 49892, 62365, 99784, 124730, 249460, 498920, 5475647, 10951294, 21902588, 27378235, 43805176, 54756470, 109512940, 219025880]

約数ペア:

[(1, 219025880), (2, 109512940), (4, 54756470), (5, 43805176), (8, 27378235), (10, 21902588), (20, 10951294), (40, 5475647), (439, 498920), (878, 249460), (1756, 124730), (2195, 99784), (3512, 62365), (4390, 49892), (8780, 24946), (12473, 17560)]