1392940

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{271}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 2947392

約数和(自身を除く): 1554452

約数列:

[1, 2, 4, 5, 10, 20, 257, 271, 514, 542, 1028, 1084, 1285, 1355, 2570, 2710, 5140, 5420, 69647, 139294, 278588, 348235, 696470, 1392940]

約数ペア:

[(1, 1392940), (2, 696470), (4, 348235), (5, 278588), (10, 139294), (20, 69647), (257, 5420), (271, 5140), (514, 2710), (542, 2570), (1028, 1355), (1084, 1285)]