19903310

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:441

約数の個数: 48

約数和(自身を含む): 42107040

約数和(自身を除く): 22203730

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 151, 245, 269, 302, 490, 538, 755, 1057, 1345, 1510, 1883, 2114, 2690, 3766, 5285, 7399, 9415, 10570, 13181, 14798, 18830, 26362, 36995, 40619, 65905, 73990, 81238, 131810, 203095, 284333, 406190, 568666, 1421665, 1990331, 2843330, 3980662, 9951655, 19903310]

約数ペア:

[(1, 19903310), (2, 9951655), (5, 3980662), (7, 2843330), (10, 1990331), (14, 1421665), (35, 568666), (49, 406190), (70, 284333), (98, 203095), (151, 131810), (245, 81238), (269, 73990), (302, 65905), (490, 40619), (538, 36995), (755, 26362), (1057, 18830), (1345, 14798), (1510, 13181), (1883, 10570), (2114, 9415), (2690, 7399), (3766, 5285)]