2563920010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2880809}}^1$

素因数の和:2880905

約数の個数: 16

約数和(自身を含む): 4666912200

約数和(自身を除く): 2102992190

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 2880809, 5761618, 14404045, 28808090, 256392001, 512784002, 1281960005, 2563920010]

約数ペア:

[(1, 2563920010), (2, 1281960005), (5, 512784002), (10, 256392001), (89, 28808090), (178, 14404045), (445, 5761618), (890, 2880809)]