1813894660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{129011}}^1$

素因数の和:129076

約数の個数: 48

約数和(自身を含む): 4118063040

約数和(自身を除く): 2304168380

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1406, 2812, 3515, 7030, 14060, 129011, 258022, 516044, 645055, 1290110, 2451209, 2580220, 4773407, 4902418, 9546814, 9804836, 12256045, 19093628, 23867035, 24512090, 47734070, 49024180, 90694733, 95468140, 181389466, 362778932, 453473665, 906947330, 1813894660]

約数ペア:

[(1, 1813894660), (2, 906947330), (4, 453473665), (5, 362778932), (10, 181389466), (19, 95468140), (20, 90694733), (37, 49024180), (38, 47734070), (74, 24512090), (76, 23867035), (95, 19093628), (148, 12256045), (185, 9804836), (190, 9546814), (370, 4902418), (380, 4773407), (703, 2580220), (740, 2451209), (1406, 1290110), (2812, 645055), (3515, 516044), (7030, 258022), (14060, 129011)]