53980525

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{809}}^1$

素因数の和:993

約数の個数: 24

約数和(自身を含む): 71412840

約数和(自身を除く): 17432315

約数列:

[1, 5, 17, 25, 85, 157, 425, 785, 809, 2669, 3925, 4045, 13345, 13753, 20225, 66725, 68765, 127013, 343825, 635065, 2159221, 3175325, 10796105, 53980525]

約数ペア:

[(1, 53980525), (5, 10796105), (17, 3175325), (25, 2159221), (85, 635065), (157, 343825), (425, 127013), (785, 68765), (809, 66725), (2669, 20225), (3925, 13753), (4045, 13345)]