164255

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:63

約数の個数: 24

約数和(自身を含む): 256032

約数和(自身を除く): 91777

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 361, 455, 665, 1235, 1729, 1805, 2527, 4693, 8645, 12635, 23465, 32851, 164255]

約数ペア:

[(1, 164255), (5, 32851), (7, 23465), (13, 12635), (19, 8645), (35, 4693), (65, 2527), (91, 1805), (95, 1729), (133, 1235), (247, 665), (361, 455)]