1029128840

素因数分解:

$2^3\times 5^1\times {\mathrm{25728221}}^1$

素因数の和:25728232

約数の個数: 16

約数和(自身を含む): 2315539980

約数和(自身を除く): 1286411140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 25728221, 51456442, 102912884, 128641105, 205825768, 257282210, 514564420, 1029128840]

約数ペア:

[(1, 1029128840), (2, 514564420), (4, 257282210), (5, 205825768), (8, 128641105), (10, 102912884), (20, 51456442), (40, 25728221)]