899120

素因数分解:

$2^4\times 5^1\times {\mathrm{11239}}^1$

素因数の和:11252

約数の個数: 20

約数和(自身を含む): 2090640

約数和(自身を除く): 1191520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11239, 22478, 44956, 56195, 89912, 112390, 179824, 224780, 449560, 899120]

約数ペア:

[(1, 899120), (2, 449560), (4, 224780), (5, 179824), (8, 112390), (10, 89912), (16, 56195), (20, 44956), (40, 22478), (80, 11239)]