20514880

素因数分解:

$2^6\times 5^1\times {\mathrm{64109}}^1$

素因数の和:64126

約数の個数: 28

約数和(自身を含む): 48851820

約数和(自身を除く): 28336940

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 64109, 128218, 256436, 320545, 512872, 641090, 1025744, 1282180, 2051488, 2564360, 4102976, 5128720, 10257440, 20514880]

約数ペア:

[(1, 20514880), (2, 10257440), (4, 5128720), (5, 4102976), (8, 2564360), (10, 2051488), (16, 1282180), (20, 1025744), (32, 641090), (40, 512872), (64, 320545), (80, 256436), (160, 128218), (320, 64109)]