19476760

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{5471}}^1$

素因数の和:5571

約数の個数: 32

約数和(自身を含む): 44323200

約数和(自身を除く): 24846440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 5471, 10942, 21884, 27355, 43768, 54710, 109420, 218840, 486919, 973838, 1947676, 2434595, 3895352, 4869190, 9738380, 19476760]

約数ペア:

[(1, 19476760), (2, 9738380), (4, 4869190), (5, 3895352), (8, 2434595), (10, 1947676), (20, 973838), (40, 486919), (89, 218840), (178, 109420), (356, 54710), (445, 43768), (712, 27355), (890, 21884), (1780, 10942), (3560, 5471)]