1287760

素因数分解:

$2^4\times 5^1\times {\mathrm{16097}}^1$

素因数の和:16110

約数の個数: 20

約数和(自身を含む): 2994228

約数和(自身を除く): 1706468

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 16097, 32194, 64388, 80485, 128776, 160970, 257552, 321940, 643880, 1287760]

約数ペア:

[(1, 1287760), (2, 643880), (4, 321940), (5, 257552), (8, 160970), (10, 128776), (16, 80485), (20, 64388), (40, 32194), (80, 16097)]