55991780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{215353}}^1$

素因数の和:215375

約数の個数: 24

約数和(自身を含む): 126628152

約数和(自身を除く): 70636372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 215353, 430706, 861412, 1076765, 2153530, 2799589, 4307060, 5599178, 11198356, 13997945, 27995890, 55991780]

約数ペア:

[(1, 55991780), (2, 27995890), (4, 13997945), (5, 11198356), (10, 5599178), (13, 4307060), (20, 2799589), (26, 2153530), (52, 1076765), (65, 861412), (130, 430706), (260, 215353)]