55437980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{213223}}^1$

素因数の和:213245

約数の個数: 24

約数和(自身を含む): 125375712

約数和(自身を除く): 69937732

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 213223, 426446, 852892, 1066115, 2132230, 2771899, 4264460, 5543798, 11087596, 13859495, 27718990, 55437980]

約数ペア:

[(1, 55437980), (2, 27718990), (4, 13859495), (5, 11087596), (10, 5543798), (13, 4264460), (20, 2771899), (26, 2132230), (52, 1066115), (65, 852892), (130, 426446), (260, 213223)]