55151980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{212123}}^1$

素因数の和:212145

約数の個数: 24

約数和(自身を含む): 124728912

約数和(自身を除く): 69576932

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 212123, 424246, 848492, 1060615, 2121230, 2757599, 4242460, 5515198, 11030396, 13787995, 27575990, 55151980]

約数ペア:

[(1, 55151980), (2, 27575990), (4, 13787995), (5, 11030396), (10, 5515198), (13, 4242460), (20, 2757599), (26, 2121230), (52, 1060615), (65, 848492), (130, 424246), (260, 212123)]