218883920

素因数分解:

$2^4\times 5^1\times {\mathrm{2736049}}^1$

素因数の和:2736062

約数の個数: 20

約数和(自身を含む): 508905300

約数和(自身を除く): 290021380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2736049, 5472098, 10944196, 13680245, 21888392, 27360490, 43776784, 54720980, 109441960, 218883920]

約数ペア:

[(1, 218883920), (2, 109441960), (4, 54720980), (5, 43776784), (8, 27360490), (10, 21888392), (16, 13680245), (20, 10944196), (40, 5472098), (80, 2736049)]