72818090

素因数分解:

$2^1\times 5^1\times {\mathrm{809}}^1\times {\mathrm{9001}}^1$

素因数の和:9817

約数の個数: 16

約数和(自身を含む): 131249160

約数和(自身を除く): 58431070

約数列:

[1, 2, 5, 10, 809, 1618, 4045, 8090, 9001, 18002, 45005, 90010, 7281809, 14563618, 36409045, 72818090]

約数ペア:

[(1, 72818090), (2, 36409045), (5, 14563618), (10, 7281809), (809, 90010), (1618, 45005), (4045, 18002), (8090, 9001)]