66480505

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{20873}}^1$

素因数の和:20905

約数の個数: 24

約数和(自身を含む): 99944712

約数和(自身を除く): 33464207

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 20873, 104365, 146111, 271349, 730555, 1022777, 1356745, 1899443, 5113885, 9497215, 13296101, 66480505]

約数ペア:

[(1, 66480505), (5, 13296101), (7, 9497215), (13, 5113885), (35, 1899443), (49, 1356745), (65, 1022777), (91, 730555), (245, 271349), (455, 146111), (637, 104365), (3185, 20873)]