81574415

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73823}}^1$

素因数の和:73858

約数の個数: 16

約数和(自身を含む): 111621888

約数和(自身を除く): 30047473

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 73823, 369115, 959699, 1254991, 4798495, 6274955, 16314883, 81574415]

約数ペア:

[(1, 81574415), (5, 16314883), (13, 6274955), (17, 4798495), (65, 1254991), (85, 959699), (221, 369115), (1105, 73823)]