16668440

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3181}}^1$

素因数の和:3323

約数の個数: 32

約数和(自身を含む): 37802160

約数和(自身を除く): 21133720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3181, 5240, 6362, 12724, 15905, 25448, 31810, 63620, 127240, 416711, 833422, 1666844, 2083555, 3333688, 4167110, 8334220, 16668440]

約数ペア:

[(1, 16668440), (2, 8334220), (4, 4167110), (5, 3333688), (8, 2083555), (10, 1666844), (20, 833422), (40, 416711), (131, 127240), (262, 63620), (524, 31810), (655, 25448), (1048, 15905), (1310, 12724), (2620, 6362), (3181, 5240)]