1796621240

素因数分解:

$2^3\times 5^1\times {\mathrm{1999}}^1\times {\mathrm{22469}}^1$

素因数の和:24479

約数の個数: 32

約数和(自身を含む): 4044600000

約数和(自身を除く): 2247978760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1999, 3998, 7996, 9995, 15992, 19990, 22469, 39980, 44938, 79960, 89876, 112345, 179752, 224690, 449380, 898760, 44915531, 89831062, 179662124, 224577655, 359324248, 449155310, 898310620, 1796621240]

約数ペア:

[(1, 1796621240), (2, 898310620), (4, 449155310), (5, 359324248), (8, 224577655), (10, 179662124), (20, 89831062), (40, 44915531), (1999, 898760), (3998, 449380), (7996, 224690), (9995, 179752), (15992, 112345), (19990, 89876), (22469, 79960), (39980, 44938)]