19914700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15319}}^1$

素因数の和:15346

約数の個数: 36

約数和(自身を含む): 46542160

約数和(自身を除く): 26627460

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15319, 30638, 61276, 76595, 153190, 199147, 306380, 382975, 398294, 765950, 796588, 995735, 1531900, 1991470, 3982940, 4978675, 9957350, 19914700]

約数ペア:

[(1, 19914700), (2, 9957350), (4, 4978675), (5, 3982940), (10, 1991470), (13, 1531900), (20, 995735), (25, 796588), (26, 765950), (50, 398294), (52, 382975), (65, 306380), (100, 199147), (130, 153190), (260, 76595), (325, 61276), (650, 30638), (1300, 15319)]