40481285

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1601}}^1$

素因数の和:2008

約数の個数: 16

約数和(自身を含む): 52481520

約数和(自身を除く): 12000235

約数列:

[1, 5, 13, 65, 389, 1601, 1945, 5057, 8005, 20813, 25285, 104065, 622789, 3113945, 8096257, 40481285]

約数ペア:

[(1, 40481285), (5, 8096257), (13, 3113945), (65, 622789), (389, 104065), (1601, 25285), (1945, 20813), (5057, 8005)]