218548420

素因数分解:

$2^2\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{9907}}^1$

素因数の和:11019

約数の個数: 24

約数和(自身を含む): 459414144

約数和(自身を除く): 240865724

約数列:

[1, 2, 4, 5, 10, 20, 1103, 2206, 4412, 5515, 9907, 11030, 19814, 22060, 39628, 49535, 99070, 198140, 10927421, 21854842, 43709684, 54637105, 109274210, 218548420]

約数ペア:

[(1, 218548420), (2, 109274210), (4, 54637105), (5, 43709684), (10, 21854842), (20, 10927421), (1103, 198140), (2206, 99070), (4412, 49535), (5515, 39628), (9907, 22060), (11030, 19814)]