19382990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:305

約数の個数: 48

約数和(自身を含む): 39012624

約数和(自身を除く): 19629634

約数列:

[1, 2, 5, 10, 11, 22, 55, 83, 110, 121, 166, 193, 242, 386, 415, 605, 830, 913, 965, 1210, 1826, 1930, 2123, 4246, 4565, 9130, 10043, 10615, 16019, 20086, 21230, 23353, 32038, 46706, 50215, 80095, 100430, 116765, 160190, 176209, 233530, 352418, 881045, 1762090, 1938299, 3876598, 9691495, 19382990]

約数ペア:

[(1, 19382990), (2, 9691495), (5, 3876598), (10, 1938299), (11, 1762090), (22, 881045), (55, 352418), (83, 233530), (110, 176209), (121, 160190), (166, 116765), (193, 100430), (242, 80095), (386, 50215), (415, 46706), (605, 32038), (830, 23353), (913, 21230), (965, 20086), (1210, 16019), (1826, 10615), (1930, 10043), (2123, 9130), (4246, 4565)]