258880

素因数分解:

$2^6\times 5^1\times {\mathrm{809}}^1$

素因数の和:826

約数の個数: 28

約数和(自身を含む): 617220

約数和(自身を除く): 358340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 809, 1618, 3236, 4045, 6472, 8090, 12944, 16180, 25888, 32360, 51776, 64720, 129440, 258880]

約数ペア:

[(1, 258880), (2, 129440), (4, 64720), (5, 51776), (8, 32360), (10, 25888), (16, 16180), (20, 12944), (32, 8090), (40, 6472), (64, 4045), (80, 3236), (160, 1618), (320, 809)]