91780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{353}}^1$

素因数の和:375

約数の個数: 24

約数和(自身を含む): 208152

約数和(自身を除く): 116372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 353, 706, 1412, 1765, 3530, 4589, 7060, 9178, 18356, 22945, 45890, 91780]

約数ペア:

[(1, 91780), (2, 45890), (4, 22945), (5, 18356), (10, 9178), (13, 7060), (20, 4589), (26, 3530), (52, 1765), (65, 1412), (130, 706), (260, 353)]