19660147225

素因数分解:

$5^2\times {\mathrm{3529}}^1\times {\mathrm{222841}}^1$

素因数の和:226380

約数の個数: 12

約数和(自身を含む): 24385600060

約数和(自身を除く): 4725452835

約数列:

[1, 5, 25, 3529, 17645, 88225, 222841, 1114205, 5571025, 786405889, 3932029445, 19660147225]

約数ペア:

[(1, 19660147225), (5, 3932029445), (25, 786405889), (3529, 5571025), (17645, 1114205), (88225, 222841)]