217778890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1187}}^1\times {\mathrm{2621}}^1$

素因数の和:3822

約数の個数: 32

約数和(自身を含む): 448550784

約数和(自身を除く): 230771894

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1187, 2374, 2621, 5242, 5935, 8309, 11870, 13105, 16618, 18347, 26210, 36694, 41545, 83090, 91735, 183470, 3111127, 6222254, 15555635, 21777889, 31111270, 43555778, 108889445, 217778890]

約数ペア:

[(1, 217778890), (2, 108889445), (5, 43555778), (7, 31111270), (10, 21777889), (14, 15555635), (35, 6222254), (70, 3111127), (1187, 183470), (2374, 91735), (2621, 83090), (5242, 41545), (5935, 36694), (8309, 26210), (11870, 18347), (13105, 16618)]