20199051340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1806713}}^1$

素因数の和:1806778

約数の個数: 48

約数和(自身を含む): 46743304608

約数和(自身を除く): 26544253268

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 1806713, 3613426, 7226852, 9033565, 18067130, 23487269, 36134260, 46974538, 77688659, 93949076, 117436345, 155377318, 234872690, 310754636, 388443295, 469745380, 776886590, 1009952567, 1553773180, 2019905134, 4039810268, 5049762835, 10099525670, 20199051340]

約数ペア:

[(1, 20199051340), (2, 10099525670), (4, 5049762835), (5, 4039810268), (10, 2019905134), (13, 1553773180), (20, 1009952567), (26, 776886590), (43, 469745380), (52, 388443295), (65, 310754636), (86, 234872690), (130, 155377318), (172, 117436345), (215, 93949076), (260, 77688659), (430, 46974538), (559, 36134260), (860, 23487269), (1118, 18067130), (2236, 9033565), (2795, 7226852), (5590, 3613426), (11180, 1806713)]