71920010

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{80809}}^1$

素因数の和:80905

約数の個数: 16

約数和(自身を含む): 130912200

約数和(自身を除く): 58992190

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 80809, 161618, 404045, 808090, 7192001, 14384002, 35960005, 71920010]

約数ペア:

[(1, 71920010), (2, 35960005), (5, 14384002), (10, 7192001), (89, 808090), (178, 404045), (445, 161618), (890, 80809)]