54137980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{208223}}^1$

素因数の和:208245

約数の個数: 24

約数和(自身を含む): 122435712

約数和(自身を除く): 68297732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 208223, 416446, 832892, 1041115, 2082230, 2706899, 4164460, 5413798, 10827596, 13534495, 27068990, 54137980]

約数ペア:

[(1, 54137980), (2, 27068990), (4, 13534495), (5, 10827596), (10, 5413798), (13, 4164460), (20, 2706899), (26, 2082230), (52, 1041115), (65, 832892), (130, 416446), (260, 208223)]