109806920

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{7057}}^1$

素因数の和:7457

約数の個数: 32

約数和(自身を含む): 247735800

約数和(自身を除く): 137928880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7057, 7780, 14114, 15560, 28228, 35285, 56456, 70570, 141140, 282280, 2745173, 5490346, 10980692, 13725865, 21961384, 27451730, 54903460, 109806920]

約数ペア:

[(1, 109806920), (2, 54903460), (4, 27451730), (5, 21961384), (8, 13725865), (10, 10980692), (20, 5490346), (40, 2745173), (389, 282280), (778, 141140), (1556, 70570), (1945, 56456), (3112, 35285), (3890, 28228), (7057, 15560), (7780, 14114)]