13890940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{317}}^1$

素因数の和:646

約数の個数: 48

約数和(自身を含む): 33550272

約数和(自身を除く): 19659332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 313, 317, 626, 634, 1252, 1268, 1565, 1585, 2191, 2219, 3130, 3170, 4382, 4438, 6260, 6340, 8764, 8876, 10955, 11095, 21910, 22190, 43820, 44380, 99221, 198442, 396884, 496105, 694547, 992210, 1389094, 1984420, 2778188, 3472735, 6945470, 13890940]

約数ペア:

[(1, 13890940), (2, 6945470), (4, 3472735), (5, 2778188), (7, 1984420), (10, 1389094), (14, 992210), (20, 694547), (28, 496105), (35, 396884), (70, 198442), (140, 99221), (313, 44380), (317, 43820), (626, 22190), (634, 21910), (1252, 11095), (1268, 10955), (1565, 8876), (1585, 8764), (2191, 6340), (2219, 6260), (3130, 4438), (3170, 4382)]